Which word refers to the smallest functional unit of a living thing?
cell
eyelash
organ
tissue
Answers
Answer: cell
Explanation: because an organ nor a eyelash is bigger
The picture says it all hope this helps someone
Explanation:
Related Questions
Choose the answer that best describes gravity.
Question 2 options:
Gravity only works between planets.
Gravity is a contact force that holds objects down on Earth.
Gravity is a contact force that holds the Moon in orbit around Earth.
Gravity is a non-contact force that holds the Moon in orbit around Earth.
Answers
"Gravity is a contact force that holds objects down on Earth" best describes gravity.
Answer: Option B
Explanation:
Gravity is the force which attracts two bodies one to the other. It is the force which causes objects in the air to fall to the ground and keeps the planets around the sun in their orbit. The greater an object's mass, the greater its gravitational power.
Gravity declines with elevation, near the Surface of the earth (sea level), so that at one-half of the Earth's radius, linear extrapolation will give zero gravity. The gravity of Planet originates from all of its mass. All its mass causes the whole mass in one's body a collective gravitational pull on.
The starting cell must duplicate its Chromosomes in interphase before mitosis can being? Does this change the number of chromosomes? Chromatids? both? how many of each would you expect in a human cell after interphase
Answers
Answer:
The correct answer is both.
Explanation:
Each chromosome is made up of a pair of sister chromatids which remain attached to each other at the centromere.During DNA replication the DNA duplicates, which means that if initially in the parent cell 'n' chromosomes were present then, after duplication, the number of chromosomes in the cell will be '2n'.As mentioned above, each chromosome has a pair of sister chromatids, that is, two chromatids per chromosome. So, 'n' chromosomes will have '2n' chromatids. Hence, '2n' chromosomes will have '4n' chromatids.In a parent cell,Before duplication, number of chromosome = n, number of chromatid = 2n.After duplication, number of chromosome = 2n, number of chromatid = 4n.The cell cycle proceeds as, G0, G1, S, G2, M.G0 represents the interphase. It occurs before replication or duplication of the chromosomes, which occurs in the S phase.So, in G0 phase, the chromosome number is 'n' and chromatid number is '2n'.DNA REPLICATION:
DNA replication is the process by which the DNA of a cell is doubled prior to cellular division. DNA replication occurs at the S-phase of the interphase stage of mitosis and meiosis. The DNA is doubled and represented by an increase in number of chromatids in each cell. The chromosome number does not change from 46 in a diploid cell (2n). However, the number of chromatid changes from 46 to 92 in each cell. After interphase stage, two chromatids each is expected to be present in each human cell.Learn more at: https://brainly.com/question/11554563?referrer=searchResults
1 Describe 2 ways that carbon is removed
from the atmosphere.
Answers
Carbon dioxide is removed from the atmosphere primarily through photosynthesis and enters the terrestrial and oceanic biospheres. Carbon dioxide also dissolves directly from the atmosphere into bodies of water (ocean, lakes, etc.), as well as dissolving in precipitation as raindrops fall through the atmosphere.
Using the genotypes and phenotypes provided from the iguana gene pool, which statement is NOT correct?
Answers
Answer:
D) Crossing an iguana with webbed feet with one with no webbing would produce iguanas ALL with no webbing because this is the dominant trait.
Explanation:
I just did the usatestprep and got it right ;)
Answer
IF YOUR ON usa testprep the answer would be D...
Crossing an iguana with webbed feet with one with no webbing would produce iguanas ALL with no webbing because this is the dominant trait.
What would most likely happen to this ecosystem if all of the red foxes were removed
Answers
Answer:
B. The Red Squirrel population would increase.
Explanation:
There isn’t another animal the would eat the Red Squirrels, therefore causing the Red Squirrels to over populate.
Answer:
B. The red squirrel population would increase.
Explanation:
As we can see on the table, red foxes are secondary consumers that's feed on primary consumers, if the red foxes were removed from the ecosystem the population of primary consumers that are eaten by red foxes (such as red squirrel and snowshoe hare) would increase.
Devise a scheme to prepare 10^-6 dilution on a plate using the least number of sterile water dilution tubes.
Answers
Answer:
The serial dilution can be done by half- logarithmic dilution method.Explanation:
The following step explains the way to obtain [tex]\frac{1}{10^6}[/tex] dilution. The volumes taken are arbitrary.Take 1 micro-litre (ul) of the concentrated solution in a dilution tube. Add water to it till the total volume becomes 10 ml. Here the solution formed is [tex]\frac{1}{10^4}[/tex] diluted.Take 100 micro-litre(ul) of [tex]\frac{1}{10^4}[/tex] diluted solution to another tube and add 9900 micro-litre(ul) of water to it. Here the solution formed is [tex]\frac{1}{10^6}[/tex] diluted.To prepare a 10^-6 dilution with the least number of sterile water tubes, perform a series of serial dilutions, starting with a 1:10 dilution and repeatedly diluting the resulting solution by the same ratio until the desired 10^-6 dilution is reached.
Explanation:
1. Make a 1:10 dilution by taking 1 unit of A (such as 1 ml) and adding it to 9 units of sterile water. This will give you a 10^-1 dilution (B).
2. Repeat this process with B to get the 10^-2 dilution (C).
3. Continue this process until you reach the desired 10^-6 dilution.
This method ensures that you are using the least number of tubes by diluting sequentially rather than trying to make the 10^-6 dilution directly, which would require a tremendous amount of sterile water and be significantly less accurate.
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What does a line in between two individuals represent?
Answers
Answer:
In a pedigree chart, the line which is horizontal shows the parents which mated and produced the children which are represented in the vertical lines below them.
A pedigree chart can be described as a diagram which illustrated the sequence of ancestors of an individual. Often, a pedigree chart is used to look for genetic traits or genetic disorders which might run in the family history. Pedigree charts are important for understanding the probabilities of the offsprings in which a genetic disorder might occur due to family history.
The following table describes several molecules and their functions. The molecules all belong to the same class.
Molecule
Function
Oleic acid used for energy storage and insulation in whales
Phospholipid component of cell membranes in plants and animals
Brassinosteroid steroid hormone involved in pollen elongation in plants
Which class of biomolecule do the molecules in the table belong to?
A. lipids
B. proteins
C.
nucleic acids
D.
carbohydrates
Reset
Next
Answers
Explanation:
The compounds are lipids
Organic compounds in nature may be large chains of monomers forming biological macromolecules which perform many essential functions in the body. Nucleic acids, sugars, proteins and lipids may be included. These are organic molecules, containing ringed or long-chain Carbons bound to oxygen (O), hydrogen (H), nitrogen (N), and phosphorus (P) elements; they are contained in important organic biomolecules, including proteins, nucleic acids, lipids, and carbohydrates.
Lipids serve as energy storage and chemical messengers for oils, saturated and unsaturated fatty acids with double bonds and waxes and steroids. Nevertheless, lipids consist of fatty acids and glycerol; they do not comprise a fixed set of monomers, and they are not polymers, unlike the other biological macromolecules. Such non-polar macromolecules can offer hydrophilic and hydrophobic properties through the arrangement of hydrophobic heads and hydrophobic fatty acid tails. Specific makeup: C, H, O; non-polar-a triple condensation reaction creates molecules bound to three long-chain carboxylic acids from a single hydroxyl (OH) alcohol.
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Answer:
A - Lipids
Explanation:
I got it right.
Can the classification system change? If so, provide an example of a way it has changed in the past.
Answers
Answer:
Yes, classification system can change with time due to the improved understanding of organisms around us and majorly due to evolution.
Explanation:
Carolus linnaeus devised various rules and factors to classify and name both plants and animals. This was the first system of classification.But, with the huge discoveries of scientific knowledge about these beings this system of classical taxonomy has to be revised again and again to incorporate new found information.One such example is the discovery of microscope which lead to the discovery of microscopic forms of life.And, this system of classification had to be changed.Hey, biology help needed. All questions please. Extra points!!!!
Answers
Answer:
13. C
14. C
15. B
16. B
17. B
Explanation:
13. Having a long neck is a selective advantage for giraffes. Their long necks make them better suited to reaching food supply at the top of trees, improving their fitness and chances of reaching reproductive age and passing on traits to the next generation. This is how natural selection acts on these traits meaning that over time, giraffes evolve a long neck.
14. The variation in the mice tail length has shifted over time, which suggests that the frequency of the alleles that control tail length has changed. This is clear when you look at the peak of the graph, which has shifted towards longer tail lengths. This suggests alleles coding for longer tail lengths are becoming more common, with the loss of shorter tail lengths
15. If a mutation spontaneously appears in the rabbit genome that makes them resistant to the virus, then they are much more likely to survive than other members of their population. This selective advantage means they are more likely to reach sexual maturity and reproduce, passing the mutation on to the next generation, where they also will benefit. Rabbits breed a lot and quickly, so natural can happen reasonably quickly in these populations, meaning the numbers of resistant rabbits will rise.
16. A vestigial structure is one that is now redundant. That means that the organism no longer uses it. These remain because there are no real selective pressures acting on them that would cause their disappearance to accelerate. Instead, they remain. These bones indicate that at one point, whale populations used to have additional limbs, suggesting they evolved from four legged animals.
17. Changes in the genetic code of an organism can sometimes produce effects such as changes to protein structure, composition, and amount. These can have changes on a much larger scale such as in the structure of forelimbs. Beneficial changes will be positively acted on by natural selection. For example, a bat could develop a stronger wing structure for rapid flying, where as the whale forelimbs are very large to make them powerful in the water. Natural selection can only act on these changes if they are heritable, meaning they have to have changed in the DNA. Any physical changes not present in the DNA will not be passed on to the next generation or undergo evolution.
in the reaction below how would adding more of product C affect the equilibrium of the system? A+B arrows both ways C+D
In the endothermic reaction below how would adding hear affect the equilibrium of the system? A+B + energy arrows both ways +D
In the following reaction, if you wanted to produce more hydrochloric acid (HCl2), what would you do? 4HCl + O2 arrows both ways 2H2O + Cl2
Answers
Answer:
First answer : equilibrium shift towards the formation of the reactants
Second answer : equilibrium shift towards the formation of products
Third answer : need to add more H2O.
Explanation:
In a reversible chemical reaction, the shift of equilibrium of the reaction towards the production of products or reactants is dependent on the abundance of reactants or products. As in the first question, if the products available are more (C) than the reactants, then the equilibrium of the reaction would shift towards the formation of the reactants (A and B). As in second question, If reactants available are more (heat addition) than that of products, then the equilibrium of the reaction would shift towards the formation of products (D). As in the third question, we want to generate more HCL, which is the reactant, so we need to increase the amount of product, so we need to add more H2O.
Where do plants get the energy they need to produce food?
Answers
Answer:Plants make food in their leaves.
Explanation: The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.
Answer:
plants get the energy they need to produce food from the sun
Will give Brainliest to the 1st person to answer this question! Explain at least two positive effects of the cell cycle on the human body. Use complete sentences.
Answers
Bet!
One of the two positive effects of the cell cycle would be how the immune system benefits because the cell cycle makes more white blood cells.
Unfortuantely I don't have any more than that so but this was the best i could remember good luck!~
Answer:
This is just to give the person above brainliest. But my answer is below
Explanation:
The human body would have more fresh cells and it would have more white cells which help the immune system
WILL MARK BRAINLIEST!!!!
What is an example of an environmental effect on phenotype?
1. the large variety found in the color of human eyes
2. the gender of sea turtles being affected by the temperature
3. a wide variation in the amount of milk produced by cows
4. a dihybrid Punnett square predicting the wrong results for two different genes
Answers
Answer:
It is not 4.
Explanation:
1 Point
Imagine that the population of moose in Yellowstone National Park
decreased after a particularly harsh winter.
How would a fast running speed be advantageous to a moose in this
population?
O
A. The moose would be more able to avoid predators.
O
B. The moose would be more able to defend its territory.
O
C. The moose would be more able to chase and catch prey.
O
D. The moose would be more able to protect its offspring.
SUBMIT
Answers
The answers are.
A. The moose would be more able to avoid predators.
C. The moose would be more able to chase and catch prey.
Explanation:
This moose population can use their speed to protect themself from the predators, but only protecting themself from predators won’t help them for their survival. They need food to live. Speed will help them to chase and catch the pray also. Since the population of moose in the Yellowstone National Park is less for them, it is very difficult to protect their territory by using their speed. They can use their speed to chase their prey. Maybe while chasing they ended up facing their predators, but they can use their speed to escape from them. Later, this will help them to make offspring also. Moose will be able to protect their offspring by running, but they should give food to the offspring also to survive.Answer:
A
Explanation:
In order for ground water to enter a well, the well must be deeper than the water
table.
true or false
Answers
True
Explanation:
To get water in the well, the depth of the well should be deeper than the water table in that region.The water table distance from the surface is varied with the locality. It depends on the availability of the source like rain, soil type which means that the soil which has a higher percolation rate will have a high water table, etc. Hence, when we did a well and the depth should be deeper than the water table for it gets water for a long time even in summers.When people deciphered DNA, they put it _______________.
a. on the internet
b. in a top-secret government computer
Answers
When people deciphered DNA, they put it in a top-secret government computer
Answer: Option B
Explanation:
The deciphering of DNA present the genealogy of the person whose DNA has been deciphered. When someone that is a scientist deciphers DNA on someone request, to produce their genealogy and family tree, that is put on internet.
The top secret government computer builds the DNA data base, named CODIS, thereby, now when the DNA deciphering is in use for surveillance purpose and building Human Genome on whole within the Human Genome Project. The top secret government computer is not accessible by any civilian and is under military control for vigilance.
What approach is required to balance the objectives of sustainable development?
Balancing the objectives of sustainable development requires a(n)
approach
Answers
Answer:
The objectives of Sustainable development can be balanced by:
Explanation:
Sustainable development targets to promote the economic use of all resources by the current generations so that these resources can be retained for use by the future generations.This can be done by (considering the environmental factors only):Efficient and increased use of public transport system instead of private transport system as this will reduce the consumption of the non-renewable fossil fuels.Efficient and judicious use of electricity and power.Reduction in use of non-biodegradable wastes like plastics.Promoting afforestation.Answer:
systems :)
For all the plato users
how can humans have 1 of 4 different blood types?
Answers
Answer:
Blood type is an example of multiple alleles. That means there are more than 2 genes for a particular trait.
Explanation: A person can inherit:
AA or AO and be type A blood
BB or BO and be type B blood
AB and be type AB blood
OO and be type O blood
What is true about elements and compounds? A. Elements contain two or more compounds. B. Compounds contain two or more elements. C. Compounds contain atoms; elements do not. D. Elements contain atoms; compounds do not
Answers
Answer: B) Compounds contain two or more elements
Explanation:
True about elements and compounds B. Compounds contain two or more elements . Therefore , B. Compounds contain two or more elements is correct .
An element is a substance that consists of only one type of atom.
Each element is defined by the number of protons in the nucleus of its atoms, known as its atomic number.
Elements cannot be broken down into simpler substances by chemical reactions.
A compound, on the other hand, is a substance composed of two or more different elements chemically bonded in fixed proportions.
The atoms in a compound are combined in a specific ratio based on their chemical properties.
Compounds can be broken down into simpler substances (elements or other compounds) through chemical reactions.
For example:
Water (H2O) is a compound made of two different elements, hydrogen and oxygen.
Carbon dioxide (CO2) is a compound made of carbon and oxygen.
So, option B is correct: Compounds contain two or more elements.
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how does meiosis contribute to genetic variation, while mitosis does not?
Answers
Answer:
Mitosis produces two daughter cells that are genetically identical to the original parent cell. Therefore there is no variation (except when things like mutations happen).
Explanation:
Compare headlines 4 and 5. Why is there a difference in the two headlines even when they outline the same scientific research?
Answers
Answer:
First, let's add the missing piece- the article
"Well, we haven’t read the articles yet, but I have their titles here. You can read them,” Alana said as she handed a paper to her mother with the following list:
1. Long-Term Cell Phone Use Spurs Tumor Growth
2. Mobile Phone Use and Acoustic Neuroma
3. Study Links Mobile Phones, Benign Tumors
4. Cell Phone-Tumor Link Found?
5.Study Indicates Mobile Phones Increase Tumor Risk
“Now I’m even more confused. Do cell phones cause cancer or not? Can I use mine or not?” asked Alisa impatiently.
“In my next class we’re going to read the articles, so I will tell you everything then,” concluded her sister.
Then the Answer to our question:
Both headlines 4 and 5 outline the exact same way, with little or no difference in the headline structure. On a closer look, we can infer that scientific research 4 looks less definite in a risk being found research. Unlike 5 which looks more definite in combining mobile phones with acoustic neuroma.
When warm air rises, air pressure
A. decreases
B. stays the same
C. increases
D. temperature doesn't impact air pressure
Answers
Answer:
When air rises air pressure increases as well
The process of using any of the five senses to gain information about an environment or about a problem.
Answers
Answer:
each sense ( eyes ears nose mouth ect.) sends electrical pules through the nerves or "messages" to the brain. which then processes it and turns it into information so that you can understand what you are seeing, hearing, tasting ect
does that help?
Observation is the process of using any of the five senses to gain information
The five sense of the body includes Touch, Sight, Hearing, Smell and Taste The sense organs which perform these function are Skin/Hair, Eye, Ear, Nose and Tongue respectively.
Let understand that Observation mean the process of acquiring information from a primary source.
The organs perform various observation on an environment or a problem by interacting with the brain through the nerves attached to them.
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What are the functions of lipids?
Answers
How many nadh molecules are created from the pyruvate molecules that enter the Krebs cycle?
Answers
Answer: Three molecules of NADH is produced from every molecule of pyruvate that enters the Krebs cycle.
Explanation: Pyruvate produced from glycolysis is broken down to Acetyl CoA which then enters the Krebs cycle. In Krebs cycle, each molecule of acetyl CoA yields one molecule of GTP (ATP), one molecule of FADH2 and three molecules of NADH. The main purpose of Krebs cycle is to generate NADH needed in the cells. Krebs cycle is a series of eight enzyme catalyzed reactions which oxidizes the Acetyl CoA produced from pyruvate. The NADH molecules are produced by dehydrogenase enzymes:
1). Isocitrate dehydrogenase which converts isocitrate to alpha ketoglutarate.
2). Alpha ketoglutarate dehydrogenase which converts alpha ketoglutarate to succinyl CoA.
3). Malate dehydrogenase which converts malate to oxaloacete.
I need an example of Bacteria, Archaea, and Eukarya.
Answers
Answer:
Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell
Bacteria, Archaea, and Eukarya are three domains of life. Bacteria are prokaryotic organisms, while archaea are also prokaryotic but have unique characteristics.
Explanation:Eukarya include plants, animals, fungi, and protists, and are characterized by having a nucleus and membrane-bound organelles.
Bacteria: An example of bacteria is E. coli, which is commonly found in the intestines of humans and other animals. Bacteria are prokaryotic organisms that lack a nucleus and membrane-bound organelles.
Archaea: Methanogens are an example of archaea. They are found in environments such as swamps and produce methane gas as a byproduct of their metabolism. Archaea are also prokaryotic organisms, but they have unique genetic and molecular characteristics.
Eukarya: Plants, animals, fungi, and protists all belong to the domain Eukarya. An example of a eukaryotic organism is a rose plant. Eukarya have a nucleus and membrane-bound organelles.
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Which of the following is not a component of soil?
a. organic material
b. minerals
gases
d. none of the above
Please select the best answer from the choices provided
OOOO
Answers
The answer is none of the above because organic materials, gasses, and minerals are all component soils.
Hope this helps!!!!!!!
Please give brainliest!!!!
Answer:
I'm not sure but i think its D
Explanation:
2 Points
What question did Hardy and Weinberg want to answer?
O
A. Are all traits in plants controlled by genes?
O
B. Is it possible to breed a plant to have certain traits?
O
C. How does allele frequency change between generations?
O
D. How large is the gene pool for a given organism?
SUBMIT
Answers
Answer:
the answer is C. How does allele frequency change between generations?
hope it helps!
Answer: c
Explanation:
some substances such as mercury tend to be found in increasing concentrations as one moves up the food chain. what is the term for this?
Answers
Answer:
Biomagnification
Explanation:
Biomagnification can simply be described as the increase in the concentration of a toxin in the tissues of organisms as one moves up in a food chain. There might be a number of reasons for this increase in concentration of the toxin. Some of the reasons are:
The toxin, such as mercury, cannot be broken down in the bodies of the organisms.When the concentration of the toxin might increase as one moves up a food chain.