It takes thousands of years for radioactive wastes from nuclear power plants to decay to the point that they are no longer dangerous. These radioactive wastes are often disposed of by putting them into the ground. The site where nuclear waste is to be stored must be chosen carefully because any disturbance to the site, such as an earthquake, could cause the waste to leak out of the site and contaminate the ground and/or the water. In addition, other considerations, such as how close the site is to large centers of human population, and how close it is to important environmental resources such as wildlife refuges for endangered species, must also be considered in case leakage does occur. The question of how many people and/or important natural resources might be affected if there were leaks at a site is important.

Imagine that you were in charge in deciding where a nuclear waste site should be established on a small continent about the size of Australia. In the picture is a map showing several proposals for where the site should be and each one is indicated on the map by a square with a number in it. Study the information given on the map and decide at which place the radioactive waste disposal site should be located.

A.Which site did you choose as the radioactive waste disposal site? Write the number.

B.Approximately how far is this site from the nearest city?

C.How far is it from the nearest important environmental resource, such as a national park or wildlife refuge?

D.What is the risk of earthquake damage at the site you chose?

E. Explain why you chose the site you did. Discuss the advantages and disadvantages of the site and what you considered most important when making your decision about where it should be located.

Answers

Answer 1

Answer & Explanation::::::::::::

Whatever fuel is used, the waste produced in generating electricity must be managed in ways that safeguard human health and minimise the impact on the environment.For radioactive waste, this means isolating or diluting it such that the rate or concentration of any radionuclides returned to the biosphere is harmless. To achieve this, practically all radioactive waste is contained and managed, with some clearly needing deep and permanent burial. From nuclear power generation, unlike all other forms of thermal electricity generation, all waste is regulated – none is allowed to cause pollution.Nuclear power is characterised by the very large amount of energy produced from a very small amount of fuel, and the amount of waste produced during this process is also relatively small. However, much of the waste produced is radioactive and therefore must be carefully managed as hazardous material. All parts of the nuclear fuel cycle produce some radioactive waste and the cost of managing and disposing of this is part of the electricity cost (i.e. it is internalised and paid for by the electricity consumers).All toxic waste needs be dealt with safely – not just radioactive waste – and in countries with nuclear power, radioactive waste comprises a very small proportion of total industrial hazardous waste generated.Radioactive waste is not unique to the nuclear fuel cycle. Radioactive materials are used extensively in medicine, agriculture, research, manufacturing, non-destructive testing, and minerals exploration. Unlike other hazardous industrial materials, however, the level of hazard of all radioactive waste – its radioactivity – diminishes with time.

Related Questions

Which of the following organelles is found only in animal cells and NOT in most plant cells?
a) chloroplast b) mitochondrion c) lysosome d) peroxisome

Answers

Answer:

C. Lysosome

Explanation:

Lysosmes are not commonly found in plants. They are mostly found in animal-like eukaryotes. Lysosomes have digestive enzymes that breakdown molecules like proteins, carbohydrates and the like. They also breakdown worn out organelles. When broken down, they exit the lysosomes in vesicles so that the cell can expel it. This is why lysosomes are called the garbbage disposal of the cell.

Final answer:

The organelle present only in animal cells and not in most plant cells is the c) lysosome. Lysosomes are responsible for breaking down biomolecules in animal cells, while plant cells use vacuoles for digestion.

Explanation:

The organelle found only in animal cells and not in most plant cells is c) lysosome. Lysosomes are known as the cell's "garbage disposal" where they aid the breakdown of various biomolecules. Plant cells typically perform these digestive processes in vacuoles. In contrast, chloroplasts are found in plant cells but not in animal cells, mitochondria are present in both animal and plant cells, and peroxisomes are also found in both but function differently depending on the type of cell.

Enzymes act like ______ in their role of speeding up reactions.
A water
B pH
C heat
D acid

Answers

Answer:

c heat

Explanation:

Enzymes act like (C) heat, as they are both catalysts

A client requiring long-term ventilator management is discharged from the health care facility. which health care setting should this client be referred to

Answers

Answer:

The correct answer is - intermediate care facility.

Explanation:

Intermediate care facilities are the care units that provide health services or health care to the patients who require care and services due to their mental and physical condition, which is supervised by physicians and nurse however they do not need, skilled nursing staff.

It is called intermediate care because it is the care between intensive and basic care where at least a registered nurse is supervising the patient.

Thus, the correct answer is - intermediate care facility.

Capable of returning to its oringinal shape after a force acting on it is removed

Answers

Answer:

Elasticity

Explanation:

Consider the results of the weathering experiment and review the climatic data for the world biomes. Based on the recorded data, compare the rate of weathering you would expect to see in the taiga versus the tropical rain forest.
A) Weathering would be comparable in both biomes; different types of weather would take place.
B) Weathering would take place at a slower rate in the taiga because of the lower temperatures.
C) Weathering would take place at a much more rapid rate in the tropics because of the humidity.
D) Weathering in the taiga would be only physical; weathering in the tropics would be physical and chemical.

Answers

Answer:

c

Explanation:

im not sure but its the only one that makes sences

Docetaxel is a drug that is used in the treatment of cancer. It interferes with cell division by inhibiting microtubule depolymerization. Specifically, what effect will this have on mitosis?

Answers

Answer:

Prevention of sister chromatids'  separation during anaphase.

Explanation:

During the anaphase, the chromosomes moves toward poles. This process is  It is accompanied by shortening of the kinetochore microtubules  and by the depolymerization of spindle microtubules at the two spindle poles.

So when docetaxel is introduced the anaphases' processes are stopped.

A cold transmitted by a facial tissue is an example of fomite. vehicle transmission. droplet transmission. vector. direct contact.

Answers

Answer:

D) Direct Contact

Why?

In this situation someone having a cold, and using a facial tissue can result in someone else throwing or moving the facial tissue away. Thus, the bacteria from the tissue touches the person. Either resulting in the person having the same cold or an advanced cold.

Explanation:

Hope this helps y'all!! :> Have a fantastic day!

Human skin cells, hair, clothing, and bedding are typical hospital contaminants.Fomites are particularly linked to hospital-acquired infections (HAIs), as they can act as a conduit for the transmission of germs from one patient to anothe.Neckties and stethoscopes are typical symbols of healthcare professionals.

Which of the following is a Fomite?

When an infected individual sneezes or coughs, infectious droplets are released into the air and cause indirect contact diseases to spread.People who are healthy run the danger of getting sick if they inhale the infectious droplets or if the contaminated droplets get in their eyes, nose, or mouth. Fomites include things like infected tools, garments, buckets, bowls, brushes, tack, and clippers. an item that could be infected with infectious substances (such bacteria or viruses) and be used to spread them, such as a dish, doorknob, or piece of clothing. When a disease spreads from one sick individual to another without direct touch between the two, this is known as indirect transmission.It takes another organism to spread a disease from animal to human or from human to human in a vector transmission scenario. Direct touch, droplets, a vector like a mosquito, a vehicle like food, or the airborne route are all possible modes of transmission. The use of one of the three forms of transmission-based precautions—contact, droplet, or airborne—depends on how a particular disease is spread. The five basic ways that germs spread include direct contact, fomites, aerosol (airborne), oral (ingestion), and vectorborne.Some microbes have multiple ways of spreading. A pathogen is indirectly conveyed from a reservoir, source, or host to another host by biological products such as blood, serum, plasma, tissue, or organs during a vehicle-borne medical transmission process. In a car, a transmission, often known as a gearbox, serves as the conduit through which engine power is transferred mechanically through gears and gear trains to the wheels.Without a transmission, a person cannot apply power to a vehicle in a controlled manner; otherwise, the automobile cannot move.

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the skull forms a solid sheet of protection and the ribs form a cage. why do you think the rib cage is not a solid sheet like the skull? which offers better protection the sheet or the cage?​

Answers

I think the the ribs are not a solid sheet because they need to be able to expand so the lungs can get an adequate amount of air in the lungs. The brain just needs to be protected and doesn’t need to expand so it’s a solid sheet. The skull seems to be the better protector at first because the ribs can break and puncture a lung, harming your breathing but if you do hit your head your brain can start swelling and the skull doesn’t allow any room for expansion. Head injuries are much more dangerous, especially if the brain starts swelling. Rib injuries seem much simpler to fix and less dangerous.

The rib cage is not solid like the skull because it needs to allow for breathing movements, protecting the heart and lungs while being flexible due to costal cartilage connections. Both structures provide essential protection for the organs they house, suited to their specific functions.

The rib cage is not a solid sheet like the skull because it provides protection while also allowing for the expansion and contraction necessary for breathing. The skull forms a solid protection for the brain, but the organs protected by the rib cage, namely the heart and lungs, require movement to function properly. The ribs are connected by costal cartilages that are flexible, allowing the thorax's volume to change during respiration.

Comparing the types of protection, both the solid sheet of the skull and the caged structure of the rib cage offer suitable support and protection for the organs they encase. The rib cage must offer a balance between protection and flexibility; thus, it is not solid like the skull but instead is a cage of bones with cartilage that can move. This design helps protect the soft organ tissues while accommodating the movements associated with breathing and cardiovascular function.

Catabolism, Enzyme, Metabolism, Nutrition, Anabolism, 1. Nutrients1. the proper supply of nutrients essential for growth, reproduction, repair, immunity, and energy 2. the conversion of nutrients into energy 3. cell converts nutrients into energy or materials for growth, repair, reproduction, and maintenance 4. the process by which the cell uses nutrients to repair or build new tissues 5. chemical substances that are absorbed by the body through the process of digestion 6. molecule responsible for facilitating biochemical reactions within the body

Answers

I suppose it's matching?

Answer:

Catabolism: The conversion of nutrients into energy.Enzyme: A large protein molecule responsible for facilitating biochemical reactions within the body.Metabolism: The process by which a cell converts nutrients into energy or materials for growth, repair, reproduction, and maintenance.Nutrition: The proper supply of nutrients essential for growth, reproduction, repair, immunity, and energy.Anabolism: The process by which the cell uses nutrients to repair or build new tissues.Nutrients: Chemical substances that are absorbed by the body through the process of digestion.

Hope this helps and have a great day!!!

[tex]Sofia[/tex]

*btw, just had this!

Final answer:

Nutrition, metabolism (encompassing catabolism and anabolism), and enzymes all interact as part of the body's system for obtaining and using energy. Enzymes facilitate the catabolism of substances to create energy, and the anabolism of cell components using this energy.

Explanation:

The terms Catabolism, Enzyme, Metabolism, Nutrition, and Anabolism are all related to how the body gains, uses and stores energy. Nutrition refers to the intake of food and how the body uses the nutrients from this food for functions like growth, reproduction, and energy. Metabolism is the overarching term for all the chemical reactions in the body, and encompasses both catabolism and anabolism.

Catabolism is the part of metabolism where the body breaks down substances to harvest energy, and is facilitated by enzymes. On the other hand, anabolism uses this energy to build up components of cells such as proteins and nucleic acids. Moreover, enzymes are molecules, mostly proteins, that speed up biochemical reactions in the body, such as those in the catabolic and anabolic processes.

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How does the pressure of blood in the arteries affect the flow of blood from the heart to the tissue?

Answers

Answer:

The arteries are the large blood vessels that carry blood from the heart to all the organs and muscles of the body, to give them the energy and oxygen they need. The arteries manage the flow of blood by controlling the speed and direction it flows in. Opening and closing different arteries affects your blood pressure

Natural selection is an example of a mechanism of evolution. Does this mechanism produce a change in individuals or populations? Explain!

Answers

Answer:

Yes, natural selection does produce a change in individuals as well as populations.

Explanation:

Natural selection is a process through which mother nature screens for the organisms that are best adapted to survive in a habitat. The theory of natural selection suggests that with time the organisms acquire those characteristics from their ancestors which allow them to be better adapted to a habitat. The other characteristics which are not needed to get extinct over a period of time. Hence, evolution changes individuals as well as populations.      

Answer: Yes

Explanation: natural selection does produce a change in individuals as well as populations.

Please help out with these questions!
Thank u!

Answers

Answer:

1. B.

2. B.

Explanation:

1. If the man is homozygous recessive, it means it carries two identical, recessive alleles. During meiosis, the alleles will be split, and each sperm cell will have 1 t (recessive) allele.

2. During the separation in Anaphase II, both combinations of BB and bb will be possible.

Hope it helped,

BiologiaMagister

Two cells have the same volume but significantly different surface area values due to differences in their shapes. The cell with the greater surface area is likely to
a) be more spherical in shape compared to the other cell
b) have a very low metabolic rate compared to the other cell
c) have fewer microvilli than the other cell
d) take in nutrients more rapidly than the other cell

Answers

Answer:

Explanation:

All cells share four common components: 1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; 2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; 3) DNA, the genetic material of the cell; and 4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid.

In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched.

Answer:

The answer on FLVS is take in nutrients more rapidly than the other cell. It might be D but they switch it up for different ppl so check 1st. My answer choice was D.

Explanation:

I took one for the team yw. 100 percent correct.

Which stage of meiosis begins with the synchronous splitting of the centromeres, which hold the sister chromatids together, allowing the chromosomes to move toward opposite poles of the cell?

Answers

Answer:

Anaphase II

Explanation:

Sperm are created through meiosis in an area of the testes called the seminiferous tubules. Through which structure do the sperm travel to exit the testes?

Answers

Answer:

Epididymis

Explanation:

From the testes, the sperms travel to the epididymis. These structures can be found resting on top of each testes. Fresh out of the testes, sperms are not yet matured and this is where the epididymis takes over. The sperm are stored here and this is where sperm matures. From here, the sperm moves into the vas deferens.

Sperm exit the testes through the rete testes and efferent ductules after being produced in the seminiferous tubules, and then travel to the epididymis for further maturation.

Sperm are created through meiosis in the seminiferous tubules of the testes. As the spermatozoa mature, they move from the lumens into the straight tubules (or tubuli recti) and then into a network of channels called the rete testes. From the rete testes, sperm exit the testes through 15 to 20 efferent ductules that cross the tunica albuginea. The sperm then continue their journey to maturity and eventual ejaculation in the epididymis, and are later transported through the vas deferens out of the body via the urethra during ejaculation.

Several factors affect an organism's ability to fossilize. Which environment would increase the chance of fossilization? A) erosive environment B) immense sediment-sized C) high energy environment D) depositional environment

Answers

Answer:

you wrong it (D)

Explanation:

The environment that would increase the chance of fossilization is known as the depositional environment. Thus, the correct option for this question is D.

What is Fossilization?

Fossilization may be defined as the physical, chemical, and biological processes that significantly lead to the preservation of plant and animal remains over time. They are eventually the remains or traces of ancient life that have been preserved by natural processes.

The remains of organisms are typically only fossilized in depositional environments where the process of sedimentation and therefore burial is more frequent.

Examples of common depositional environments are lakes, river deltas, and ocean basins. The burial process isolates the remains from the biological and physical processes that would otherwise break up or dissolve the body material.

Therefore, the environment that would increase the chance of fossilization is known as the depositional environment. Thus, the correct option for this question is D.

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Which statement best describes an organism's life cycle?


The longer the life cycle, the larger the organism.
The shorter the life cycle, the larger the organism.
The longer the life cycle, the less the chance of reproduction.
The shorter the life cycle, the greater the chance of reproduction.

Answers

Answer: A. The longer the life cycle, the larger the organism

Explanation:

Small animals ot insects usually die quickly, take a tree frog for instance it only lives for 5 years compared to an orca whale who live for 50-80 years. In conclusion, the larger the organism longer the life cycle.

The longer the life cycle, the larger the organism best describes an organism's life cycle and is denoted as option A.

What is Life cycle?

This is defined as series of changes in form that an organism undergoes, returning to the starting state.

The longer the life cycle, the larger the organism as it will take more time for development in bigger organisms.

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What happens to a noun when you add suffixes such as –like, -ous, -ly, or –ish?

The noun becomes an adverb.

Answers

Answer:

Yes, the noun becomes an adverb

Explanation:

Technician A says that vapor has a fixed volume that remains the same when temperature increases. Technician B says that decreasing the temperature on a vapor will increase the pressure. Who is correct? A. Both Technician A and Technician B B. Technician A C. Technician B D. Neither Technician A nor B

Answers

Answer:

B. Technician A

Explanation:

Technician A is right while B is wrong.

Reason being:

Vapour has got no fixed shape nor volume, vapour occupies space and conforms to the shape of its container. The volume of vapour changes with increase in the amount of temperature.

On the other hand a decrease in temperature decreases the pressure of the water vapour.

The molecules forming the vapour shall contract thereby leading to a lower pressure.

Answer:

Answer is D

Explanation:

Page 713......

Unlike a solid, a vapor has NO fixed volume.

Increasing the temperature of a vapor, while keeping the volume confined in the same space, Increases the pressure.

In the cells of all human females, one X chromosome is inactivated. The opsin1 gene is on the X chromosome and is expressed in the retinal cells of the eye. Mutations in this gene cause the recessive trait of colorblindness. Most women who have one mutant allele of the opsin1 gene and one normal allele of the opsin1 gene (they are heterozygous) can still see color. What is the most likely explanation for this finding? a. The X with the mutant allele of the opsin1 gene is more likely to be inactivated because of the opsin1 mutation. b. Any mutations in the opsin1 gene on the active X can be corrected through genetic exchange (recombination) with the inactive X. c. If the active X has the mutant allele of opsin1 gene, the inactive X with the normal allele will be reactivated. d. Some retinal cells will have an active X with the mutant allele of the opsin1 gene, and some will have an active X with the normal allele of the opsin1 gene.

Answers

Answer:

d. Some retinal cells will have an active X with the mutant allele of the opsin1 gene, and some will have an active X with the normal allele of the opsin1 gene.

Explanation:

X-inactivation (or silencing of X chromosome) is a process that occurs in females in order to prevent females from having twice as many X chromosome gene products as males. It occurs randomly during the embryonic development. Another important characteristic of X chromosome inacativation is that it occurs on a cellular level which leads to mosaic expression. This means that some cells will have an inactive maternal X-chromosome and some inactive paternal X-chromosome.

VWhat is the role of the beaver in its ecosystem? A) It is a foundation species and the main source of food for the natural predators of its ecosystem. B) It is a keystone species that modifies its natural environment by damming streams to form wetlands. C) It is a dominant species, as it has the greatest number of individuals among all the mammalian species of its ecosystem. D) It is an endangered species as it has the least number of individuals among all the mammalian species of its ecosystem.

Answers

c, is correct answer i think

Final answer:

Beavers are a keystone species in their ecosystem, creating wetlands by damming streams which enhances biodiversity by providing diverse habitats for various species.

Explanation:

The role of the beaver in its ecosystem is best described as a keystone species that significantly modifies its environment. By damming streams to create wetlands, beavers play a critical role in enhancing biodiversity. These actions not only alter the flow of water but also spread and store it efficiently, creating a diverse range of habitats for various plant and animal species. This behavior underlines the importance of beavers in ecosystem dynamics, similar to how the reintroduction of wolves to Yellowstone Park dramatically increased biodiversity by altering the behaviors of other species and the physical landscape.

Explain why c02 levels in the atmosphere are lower in spring/summer than in fall/winter. Show evidence

Answers

Among what trees do is take in CO2 and give out O2.

During spring/summer, there are more trees (living) than in fall/winter.

So, there is less CO2 in the atmosphere in spring/summer.

Discuss the evidence from the skeletons and teeth of early agriculturalists. then describe the negative consequences of a shift from food foraging to the domestication of food in terms of pathologic (disease) evidence.

Answers

of what? what subject

Which of the following characteristics is not attributed to the sympathetic division of the ANS?

A) It originates in the thoracolumbar region of the spinal cord
B) It has a long postpanglionic fibers
C) It has a long preganglionic fibers
D) Its glangia are adjacent to the spinal column
E) It has an extensive neural divergence and a relative widespread effect

Answers

Answer:

C) It has a long preganglionic fibers

Explanation:

Peripheral nervous system (PNS) is the nervous system that contains nerves and ganglia outside the central nervous system (CNS). PNS is divided into:

somatic (voluntary) nervous system-controls the movements of the skeletal musclesautonomic (involuntary) nervous system-controls the smooth muscles and glands and thus it is the regulator of the major body functions. It is subdivided into tree groups:sympathetic ("fight and flight") system-responsible for stressful and active situations (but also in normal conditions);contains short preganglionic fibers and long postganglionic fibers.parasympathetic ("rest and digest") system-opposite to sympathetic, responsible for the maintenance of body's activities at rest.enteric nervous system-controls the function of the gastrointestinal tract.

A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?

a. As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.

b.The cells will never run out of oxygen if the weightlifter is breathing.

c.As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.

d.As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.

Answers

Answer:

The correct option is A.

Explanation:

Humans need energy to do work. The energy is normally obtain from the chemical energy that is derived from consumed food. During performance of physical activities, the amount of energy needed by the working muscles usually increases and this typically leads to fast depletion of energy. In order to augment the rapidly depleting energy, the muscle cells switch to anaerobic breakdown of glucose, which produce carbon dioxide and alcohol and a little quantity of energy, which the working muscles can use.

Final answer:

During a weightlifting competition, muscles switch to anaerobic respiration when oxygen supply is insufficient, leading to less efficient production of ATP and the accumulation of lactic acid, which contributes to muscle fatigue.

Explanation:

The scenario described involves a weightlifter competing in an event, in which the muscles quickly require a large amount of energy and experience a shortage of oxygen. Under these conditions, the muscles switch to anaerobic respiration, which leads to the production of ATP without the use of oxygen. This energy-producing process is much less efficient than the oxygen-dependent aerobic respiration, resulting in a limited amount of ATP and the accumulation of lactic acid, which is associated with muscle fatigue.

As the weightlifter performs, the initial supply of ATP from stored sources and creatine phosphate is rapidly used, then the muscles rely on glycolysis to supply further ATP. However, because the rate of ATP production through glycolysis is slower than through creatine phosphate, and less efficient without oxygen, this leads to quicker fatigue. Moreover, the production of lactic acid during this anaerobic process can contribute to the sensation of fatigue and soreness in the muscles.

This is the role of a species in an ecosystem, consisting of such things as what it eats, when it eats, and where it lives.

Answers

Answer:

Your answer would be a NICHE.

Explanation:

when an animal in an ecosystem consisting of such things as what it eats, when it eats, and where it lives would be called a NICHE.

Answer:

niche

Explanation:


54)
A student is studying a process in which a diploid cell becomes haploid. Which of these shows the CORRECT mathematical model for the process if Nnew is the number of chromosomes in the haploid cell and Nold is the number of chromosomes in the diploid cell?
A) Nnew = 2·Nold
B) Nnew =
Nold
2
C) Nnew = Nold + 2
D) Nnew = Nold × 2

Answers

Answer:

B

Explanation:

A haploid cells has the number of chromosomes that is the number of chromosomes of a diploid cell divided by two.

Answer:

I agree, the answer is b

Explanation:

A microbiologist is working with two genera of bacteria, A and B, to determine if cells are competent. Strains are grown under optimal conditions, and DNA fragments that carry the gene for green fluorescent protein is added to each culture at 20-minute intervals. Samples from each treatment are plated to nutrient agar and incubated, after which the plates are examined under an ultraviolet lamp. The microbiologist observes that all plates of bacteria B contain colonies that are fluorescent, while for bacteria A only the plates from stationary phase demonstrate fluorescent colonies. What can be concluded from these results?

Answers

Answer:

it would be an observation

Observation in scientific process refers to gathering facts and information. In this particular context, we could see that the microbiologist is simply stating what he/she saw on the mold on the agar plate. The microbiologist simply writing down all the facts without making any explanation or assumption.

Explanation:

Action potential propagation in a skeletal muscle fiber ceases when acetylcholine is removed from the synaptic cleft. Which of the following mechanisms ensures a rapid and efficient removal of acetylcholine?a) Acetylcholine is degraded by acetylcholinesterase.b) Acetylcholine is transported back into the axon terminal by a reuptake mechanism.c) Acetylcholine is transported into the postsynaptic neuron by receptor-mediated endocytosis.d) Acetylcholine diffuses away from the cleft.

Answers

Answer:

a) Acetylcholine is degraded by acetylcholinesterase.

Explanation:

After it binds for its receptor on the plasma membrane of the postsynaptic cell, acetylcholine must be removed in order to prevent repeated stimulation. Acetylcholinesterase is enzyme for the inactivation of acetylcholine, present at all cholinergic synapses. This enzyme hydrolyses acetylcholine and breaks it to the acetate and choline. Choline can be reused for the synthesis of the new acetylcholine molecule so it is taken back into the presynaptic cell.

Final answer:

The rapid and efficient removal of acetylcholine from the synaptic cleft in a skeletal muscle fiber is accomplished by its degradation by acetylcholinesterase. This enzyme breaks down acetylcholine into acetic acid and choline, which is then reabsorbed by the neuron.

Explanation:

The mechanism that ensures a rapid and efficient removal of acetylcholine from the synaptic cleft in a skeletal muscle fiber is its degradation by an enzyme called acetylcholinesterase. Once acetylcholine is released into the synaptic cleft, the acetylcholinesterase breaks it down into acetic acid and choline. This halts the action potential propagation by reducing the concentration of acetylcholine, terminating the signal between the nerve and the muscle fiber. The choline is then reabsorbed by the neuron to make more acetylcholine.

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If a pregnant woman drinks 2-5 alcoholic drinks per day, what effects does this have on the developing baby?

Answers

Low birth weight, premature birth, miscarriage (fetus dies before the 20th week of pregnancy), birth defects (hearing issues, or heart defect)

Other Questions
Which statement concerning an organism produced by cloning is correct Match the equation with its graph -4x + y = 8 Lord of the flies chapter 3Analysis & Interpretation:9. "I thought I might kill" (51).Context:Analysis:10. They looked at each other, baffled, in love and hate. All the warm salt water of the bathing pool and the shouting and splashing and laughing were only just sufficient to bring them together again (55).Context:Analysis:11. This chapter reveals a growing conflict between Ralph and Jack, leading to the above referenced quotation. Why are they in conflict? How could they resolve it? Context:Analysis: Creo que el banco me (dar) el prstamo que necesito. Si no salimos inmediatamente, t y yo (llegar) tarde. Me parece que la frutera (cerrar) pronto. Maana (nosotros) (decidir) dnde ir de vacaciones. El mes que viene (yo) (leer) tres novelas. Cuando (yo) llegue a casa, te (decir) lo que pienso. Diagnostics_number_6 Verbos Fill in the blanks with the correct nosotros/as commands. Modelo estudiar (affirmative) estudiemos estudiar (negative) no estudiemos irse (affirmative) irse (negative) leer (affirmative) levantarse (affirmative) escribirle (negative) a movie theater has 18 rows with 15 seats each how many seats does the theater have 1. The Greek god Chronos is known as the personification of time. The word chronology comes from his name. Given this knowledge, choose the best definition of the chronology of a story.1PointsAthe order in which story events occurBthe number of characters in the storyCthe development of the theme of the storyDthe author's style of writing in the story2. What is the meaning of the Latin root -sem- or -sim-? 1PointsAhalfBsmallCseemDmove3. The Latin word lupus means wolf. Using this knowledge and your understanding of the Latin suffix -ine, indicate the meaning of the English word lupine.1PointsAa small wolfBfull of wolvesClike a wolfDa need of wolves How do I find the Circumference? Micah made a scale model of the Empire State building.The building has an actual height of 381 meters. Micahs model used a scale in which 1 cm represents 50 meters. what is the height in centimeters of Micahs model? Which of the following correctly identifies the producers in the forest food web shown below How did the Opium War affect China?-undermined U.S. efforts to obtain trading rights in East Asia-closed most of China to European merchants and goods-ended the European drug trade in China and India -forced China to accept unfavorable trade terms with Western nations Hydrogen gas and oxygen gas react to form liquid hydrogen peroxide. Which statement is true about the reaction? A. The same atoms are present, so the chemical properties remain the same. B. The atoms of the reactants combine to form a new substance. C. The two gases mix together, but a new substance does not form. D. The product that is formed has the same physical properties as the reactants. Who Is It? Where are neurotransmitter receptors located? Rising temperatures in the Arctic Ocean can lead to large die offs of phytoplankton which are autotrophs what would most likely happen in an arctic ecosystem if the phytoplankton population decreased The total deposit and rent collected by an apartment manager for one resident are given by the equation t = 350 + 700m, where m is the number of months the resident has lived there. Is this model of the situation linear? If it is, what are the slope and the y-intercept?A. linear: slope = 350, y-intercept = 700B. linear: slope = 700, y-intercept = 350C. linear: slope = 2, y-intercept = 350D. not linear When the pressure that a gas exerts on a sealed container changes from 811 mm Hg to 415 mm Hg, the temperature changes from 33.0C to _ C? What is one reason that the Constitutional Convention decided they needed a document to replace the Articles of Confederation? A.Because the country needed a document to guide it through war B.Because the country decided to become a monarchy C.Because the articles did not define a court system D.Because the articles did not grant everybody equal rights A ball is dropped off the side of a bridge after falling 1.55 s, what is its velocity. Which of the following is a force? A. mass B. volume C. weight D. length Find the value of the combination. 16c14 HELP