Answer:
ATP synthesis, through cell respiration.
The mitochondrion functions in the ATP synthesis.
Explanation:
Mitochondria helps in formation of ATP molecule with the help of the membrane bound protein known as ATP synthase. These proteins catalyzes the addition of phosphate group to the adenosine nucleotide and then add phosphate group to the previously attached phosphate group by producing a phosphoanhydride bonds. These phosphoanhydride Bond releases high energy in the system when broken. The third phosphate from adenosine releases the maximum energy followed by the the others.
Beth broke her ankle bone. The doctor gives her a
brochure on foods she can eat to help restore the
health of her bones. Which element will help Beth
strengthen the bone?
A. Carbon
B. phosphorus
C. Nitrogen
Answer:
B
Explanation:
Several dietary minerals contribute to bone strength, but calcium and phosphorus are the most important minerals for strong bones. ... These two minerals work together to keep bones strong and prevent osteoporosis, a bone-thinning disease. ...
Answer:
B
Explanation:
The majority of sulfur dioxide produced by
industry comes from
a. oil refineries.
b. dry cleaners.
C. chemical plants.
d. coal-burning power plants.
The majority of sulfur dioxide produced by industry comes from coal-burning power plants.
The majority of sulfur dioxide produced by industry comes from option D, coal-burning power plants.
Coal is a fossil fuel commonly used in power generation, and when it is burned, sulfur dioxide (SO2) is released as a byproduct.
This is due to the presence of sulfur compounds in coal.
Sulfur dioxide emissions from coal combustion contribute to air pollution and can have detrimental effects on human health and the environment.
While sulfur dioxide can also be emitted from other industrial sources like oil refineries, dry cleaners, and chemical plants, coal-burning power plants are typically the largest contributors to sulfur dioxide emissions.
When sulfur dioxide reacts with water vapor and other compounds in the atmosphere, it can form acid rain. Acid rain can have detrimental effects on ecosystems, including damage to forests, lakes, and aquatic life. It can also corrode buildings and infrastructure.
Thus, the correct option is d.
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In general, are there any major differences that you can see? Explain
Prokaryotes lack a true nucleus, membrane-bound organelles, and are typically single-celled.
Eukaryotes have a nucleus, organelles, and can be single-celled or multicellular.
Nucleus: One of the most fundamental distinctions is the presence of a true nucleus. Prokaryotes, including bacteria and archaea, lack a membrane-bound nucleus.
Membrane-Bound Organelles: Eukaryotic cells contain various membrane-bound organelles, such as the endoplasmic reticulum, Golgi apparatus, mitochondria, and chloroplasts (in plants). Prokaryotes have very few organelles and typically lack these membrane-bound structures.
Cell Size: Prokaryotic cells are generally smaller and simpler than eukaryotic cells, which can be much larger and more complex.
Cell Division: Prokaryotes usually reproduce asexually through binary fission, while eukaryotes have more complex modes of cell division, including mitosis and meiosis.
Genetic Material: In prokaryotes, the genetic material is typically a single circular DNA molecule. Eukaryotes have multiple linear DNA molecules.
Ribosomes: Ribosomes are the cellular structures responsible for protein synthesis. While both prokaryotes and eukaryotes have ribosomes, their sizes and compositions differ.
Membrane Structure: The plasma membrane of prokaryotes contains a different type of lipid and lacks sterols (except in some archaea) compared to eukaryotes.
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Question
What are the differences between prokaryotes and eukaryotes?
Which of the following particles always has a positive charge?
A. ElectronB. Neutron
C. Proton
D. Ion
Hello There!
A proton is a subatomic particle that has a positive electric charge. Its mass is slightly less than a neutron that has no electric charge.
What data helps provide support for the Plate Tectonic theory?
detailed research of the ocean floor
shape of the continental coastlines matching up together
lava flows that match up on different coasts of different continents
rock layers that match up on different continents
Answer:
The data that supports the Plate Tectonic theory includes:
1. Detailed research of the ocean floor:
- Scientists have discovered mid-ocean ridges, deep-sea trenches, and underwater mountain ranges through mapping and exploration of the ocean floor. These features provide evidence of tectonic plate movement and the process of seafloor spreading.
2. Shape of the continental coastlines matching up together:
- The coastlines of continents such as South America and Africa appear to fit together like puzzle pieces. This observation suggests that these continents were once part of a larger landmass known as Pangaea, which supports the idea of continental drift.
3. Lava flows that match up on different coasts of different continents:
- Geological studies have found similarities in the composition and age of volcanic rocks and lava flows on opposite sides of the Atlantic Ocean. For example, the volcanic rocks in Brazil match those in western Africa, indicating a shared geological history and supporting the theory of plate tectonics.
4. Rock layers that match up on different continents:
- Fossil evidence and rock formations with similar characteristics have been found on separate continents, such as the Appalachian Mountains in North America correlating with the Caledonian Mountains in Europe. These similarities suggest that these landmasses were once connected and have since drifted apart due to plate tectonics.
What is the atomic mass of the element cobalt (Co)?
Answer:
59
Explanation:
The mass number of an atom is usually the sum of the protons and neutrons in its nucleus. The common isotope of Cobalt has 27 protons and 32 neutrons. However, there are several other isotopes (less stable) of cobalt with a higher mass number such as cobalt-60.
ANSWER ASAP 50 POINTS
Which of the following distinguishes the soil composition of grassland?
1. The soil supports large trees with thick, long roots, so Horizon B needs to be deep enough to sustain larger flora.
2. The soil supports large trees with thick, long roots, so Horizon A needs to be deep enough to sustain larger flora.
3. The soil supports small plants and shrubs with short roots, so Horizon A needs to be deep enough to sustain smaller flora.
4. The soil supports small plants and shrubs with short roots, so Horizon B needs to be deep enough to sustain smaller flora.
Answer:
It's either A or B, But i'm going to say A.
Explanation:
Hope my answer has helped you and if not i'm sorry.
Guard cells control which event?
the growth of plants
capture of solar energy
gas exchange in leaves
water absorption in roots
Guard cells control the massive amounts of gaseous exchange that takes place through the small pores known as stomata. Thus, the correct option for this question is C.
What are Guard cells?Guard cells may be defined as the kidney-shaped cells that envelop the stomata and are responsible for opening and closing of the stomatal pore.
A large amount of water is lost as a result of the opening of stomata for a long time, so the plant closes these pores when they do not need carbon dioxide for photosynthesis.
The guard cells swell when water flows into them, causing the stomatal pore to open, while the guard cell shrinks when water flows away from them, causing the stomatal pore to close.
Therefore, Guard cells control the massive amounts of gaseous exchange that takes place through the small pores known as stomata. Thus, the correct option for this question is C.
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after the stomach which comes next in the alimentary canal
A. esophagus
B. large intestine
C. mouth
D. small intestine
Answer:
its the large intestine
Explanation:
why would a small intestine come after a small intestine, no disrespect
The small intestine follows the stomach in the alimentary canal.
What is alimentary canal?
The alimentary canal is typically understood to be the route taken by food as it enters our bodies and exits through the anus after being digested.
It is made up of a tube-like structure that extends from the mouth to the anus.
The digestive tract, which also refers to the alimentary canal, is crucial to human digestion.
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Which best describes the role of nitrogen in the human body?
O
A. Makes up 1.5% of the human body
O
B. Transfers energy in cells
O
C. Makes energy in cells
O
D. Main ingredient of protein
SUBMIT
Answer:
C. Makes energy in cells
Explanation:
Nitrogen has the role of making energy in cells of the human body.
Answer: Option D
Explanation:
Nitrogen is present in atmosphere in abundant amount. It is present in gaseous state in atmosphere.
Nitrogen is found inside body in proteins. It helps in protein synthesis and is a major component of protein.
Amino acids are the building blocks of all the proteins. Nitrogen in body is also present in the form of urea. So, it an important component inside body.
The tectonic and rock cycles recycle the lithosphere. The tectonic cycle includes the processes of seafloor spreading, subduction, and mantle convection. The rock cycle includes the processes of _____. weathering, sedimentation, and assimilation weathering, erosion, cremation, and metamorphism erosion, condensation, nitrification, and tectonic activity weathering, erosion, sedimentation, and metamorphism
Answer:
Weathering, erosion, sedimentation, and metamorphism (Last statement)
Explanation:
The rock cycle contains these processes. The rock cycle depicts how rocks can change from one type of rock to the other. They do not necessarily have to follow a specific order, but these process aid in transforming one rock to another type of rock.
For example, an igneous rock can tuen into sedimentary rocks through weathering and erosion first. When the rock is broken down into pieces called sediments, , these sediments settle through the process of sedimentation. If enough sediment accumulates, it eventually forms a sedimentary rock. If the same rock eventually is subjected to immense heat and pressure, the process of metamorphism can occur, which turns it into a metamorphic rock.
Answer:
the answer is Weathering, erosion, sedimentation, and metamorphism
Explanation:
What is the purpose of the biogeochemical cycles?
A to cycle energy through a food chain
B to recycle matter through the biosphere
C to recycle rocks through the layers of Earth
D to cycle nutrients through the human body
Answer:
B to recycle matter through the biosphere
Explanation:
The biogeochemical cycle describes how elements and compounds moves between the living and non-living component of the biosphere.
The cycle shows how matter which are composed of elements and compounds moves through various part of our world. In short, the cycle constantly proves that no matter is lost or destroyed. They are actually recycled. Elements such as hydrogen, oxygen, phosphorus, carbon, nitrogen are constantly being recycled as no new ones are formed. The biogeochemical cycle provides a vivid explanation as to why this occurs.
When gametes are produced from a parent cell during normal meiosis, which of the following describes the number of chromosomes in each resulting cell?
A) each resulting cell has the same number of chromosomes as the parent cell
B) Each resulting cell has twice the number of chromosomes as the parent cell
C) Each resulting cell has one half the number of chromosomes as the parent cell.
D) Each resulting cell has one fourth the number of chromosomes as the parent cell
Answer:
C
Explanation:
Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell.
During meiosis, each gamete produced has half the number of chromosomes as the parent cell, ensuring the correct number in offspring after fertilization.
Explanation:When gametes are produced from a parent cell during normal meiosis, each resulting cell has half the number of chromosomes as the parent cell.
So, the correct option is:
C) Each resulting cell has one half the number of chromosomes as the parent cell.
Meiosis is a specialized cell division process that reduces the chromosome number by half, leading to the formation of haploid gametes (sperm and egg cells) in animals. In humans, for example, somatic cells are diploid, meaning they have two sets of chromosomes, while gametes are haploid, containing one set of chromosomes. This reduction in chromosome number is crucial for sexual reproduction when two haploid gametes (sperm and egg) fuse to form a diploid zygote during fertilization.
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What is the phase change from liquid to gas
Answer:vapor is gas and water is liquid so when you boil water it turns in to vapor
Explanation:
Answer: vaporization
Explanation:
Question 1 of 10
2 Points
Which best describes adaptive radiation?
O
A. Geographical isolation caused by an adaptation
O
B. Biodiversity resulting from few ancestors
O
C. A decrease in the rate of speciation
D. Adaptations that organisms teach each other
The best choice would be B.
Adaptive radiation describes the rapid evolutionary diversification(speciation) of a single ancestral line.
Fatty acids are the basic unit of which macromolecules?
O
A. Proteins
O
B. Lipids
O
c. Carbohydrates
O
D. Nucleic acids
Answer: B. Lipids
Explanation:
Lipids, popularly called fats, are insoluble in water consisting of several substances, including fatty acids. Fatty acids are carboxylic acids with hydrocarbon chains, classified by carbon chain length (short, medium and long-chain), the presence and number of double bonds (saturated and unsaturated) and the configuration of double bonds (cis and trans). Lipids, are composed of a series of substances that play different roles in the body and whose main characteristic is insolubility in water.
A dietician examines the diet of a patient who is complaining that he is unable to build muscle mass. The patient eats mainly fresh fruits, vegetables, pasta, bread, and some fats and oils.
Which type of supplement will the dietician most likely recommend?
Answer:
Protein
or Potassium
Explanation:
Answer:
The correct answer would be protein as a source of amino acids.
Explanation:
Proteins are the major source of amino acids. These are said to have a key role in building muscle mass. Proteins can be obtained from the egg, red meat, tofu and cheese, and other sources. Potassium is also a great muscle building nutrient.
In different protein supplements L-leucine, L-isoleucine and L-valine, branched-chain amino acids are present which is used by bodybuilders.
Thus, the correct answer would be Protein.
Question 14 (5 points)
When metals combine with nonmetals, the atoms of the metals tend to lose electrons, forming _____ bonds.
Question 14 options:
ionic
covalent
triple
unbreakable
Question 15 (5 points)
In _____ bonding, positively charged metallic ions are surrounded by a cloud of electrons.
Question 15 options:
ionic
covalent
triple
metallic
Answer:
1st one: ionic
2nd: Metalic
Answer:
Ionic
Explanation:
8. What is a reaction center?
A an electron carrier that transports electrons to the dark reaction
B a carbohydrate molecule that is produced during photosynthesis
O
C
a high-energy molecule that acts as the energy currency for the cell
D a pigment molecule that transfers electrons during the light reaction
Whitch letter is it a, b, c, or d
Answer:
a pigment molecule that transfers electrons during the light reaction-D
Answer:
The correct answer is option D pigment molecule that transfers electrons during the light reaction
Explanation:
A photosynthetic reaction center is a complex molecule formed of proteins, chlorophyll pigment and other co-factors present in the photo-system.
These reaction centers are present in the photosystems which are found in the thylakoid membranes of plants, algae and cytoplasm of cyanobacteria.
Reaction center converts the light energy absorbed by the pigment molecule called chlorophyll in plants which energize the electrons and bring them in motion thus, start a chain of electrons passing energy to higher electrons.
Thus, option D pigment molecule that transfers electrons during the light reaction is the correct answer.
17. While hiking in a rural area, you encounter a wetland and conclude that it's a swamp. Which feature helped you reach
this conclusion?
A. It's located near the coast.
B. It contains a number of carnivorous plants.
C. It's located near a lake.
D. It contains a variety of trees and shrubs.
Answer:
The answer is D. it contains a very variety of trees and shrubs.
Explanation:
Swamps tend to form when water stagnates in a region, causing not only terrestrial trees to grow, but also aquatic plants. These swamps are characterized by being very wooded areas, where the soil has poor drainage, which leads to water stagnation, although this tends to be shallow. The swamps can be both salt water and fresh water.
Final answer:
Identifying a wetland as a swamp is usually based on the D. presence of numerous trees and shrubs, which is characteristic of swampy environments, as opposed to other wetlands that may have more herbaceous plants.
Explanation:
When hiking in a rural area, encountering a wetland and concluding that it is a swamp would likely be due to the feature identified that contains a variety of trees and shrubs. Swamps are a type of wetland characterized by their woody vegetation, which includes trees and shrubs that can tolerate water-logged conditions. Unlike other wetlands like marshes, which typically have more grasses and reeds, the presence of trees is a distinctive feature of swamps.
Wetlands are complex ecosystems where the soil is permanently or periodically saturated with water, featuring hydrophytic vegetation and hydric soils. The emergence of vegetation consisting of plants with stems, leaves, and flowers above the water is common to these biomes, but the presence of trees is particularly indicative of a swamp environment.
Why are small quantities of chlorofluorocarbons so harmful to the ozone layer?
a. The chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced.
b. The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in
ozone production
c. Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine
which can then recombine with an oxygen atom in ozone, destroying more ozone.
d. Chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone
Please select the best answer from the choices provided
Answer:
C
Explanation:
Question 1(Multiple Choice Worth 3 points)
(06.04 LC)
Which of the following is true about repetition in an experiment?
It involves setting up of a hypothesis.
It involves multiple trials.
It involves data analysis.
It involves peer review.
Question 2(Multiple Choice Worth 3 points)
(06.03 MC)
The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic ratio for a cross between plants with red (Rr) flowers and white (rr) flowers?
4 red : 0 white
3 red : 1 white
2 red : 2 white
0 red : 4 white
Question 3(Multiple Choice Worth 3 points)
(06.01 MC)
The following table describes some biotechnological processes.
Biotechnological Processes
Process Description
1 Producing offspring that have identical DNA as one parent
2 Crossing a high-yielding fruit variety with a high-vitamin variety
Which biotechnological processes are described in the table?
Both processes describe cloning.
Both processes describe genetic engineering.
Process 1 describes cloning and process 2 describes artificial selection.
Process 1 describes artificial selection and process 2 describes cloning.
Question 4(Multiple Choice Worth 3 points)
(05.04 MC)
Which of the following adaptations best helps polar bears walk on snow?
Furry feet
Slippery feet
Small feet
White-colored feet
Question 5(Multiple Choice Worth 3 points)
(06.01 HC)
A team of scientists altered the DNA of E. coli bacteria. The bacteria thus developed had the ability to generate insulin exactly identical to the human insulin molecule. What could be the likely impact of this biotechnology on the individual and the society?
The medical costs for insulin-dependent patients would rise.
Large-scale insulin could be produced in relatively lesser time.
The price of insulin available from sources other than bacteria may fall.
The patients who take insulin may become infected with E. coli bacteria.
Question 6(Multiple Choice Worth 3 points)
(06.03 LC)
Which of the following is used to represent a recessive trait in a Punnett square?
An uppercase letter
A lowercase letter
A shaded square
A shaded circle
Question 7(Multiple Choice Worth 3 points)
(06.03 MC)
Cystic fibrosis is a recessive gene disorder. The pedigree chart for a family known to have cystic fibrosis is shown below.
A half shaded circle is shown connected by a straight line to an unshaded square. Underneath the half shaded circle are the letters Aa which represent the genotype for the first parent. Underneath the second parent the letters, AA, appear representing the genotype for the other parent. Below this is another row of circles and squares. This 2nd row represents the offspring. Starting from the left a half shaded circle is shown connected to an unshaded square, followed by an unshaded square, and then an unshaded circle. Each of the circles and squares, offspring, are connected by a horizontal straight line that connects to the parent group above. The genotype is written under each of the offspring in order from left to right; Aa, AA, AA, AA.
What percentage of the offspring have observable disease?
0%
25%
50%
75%
Question 8(Multiple Choice Worth 3 points)
(06.03 LC)
Which of the following is an example of a homozygous recessive allele?
rr
Rr
RR
Rw
Question 9(Multiple Choice Worth 3 points)
(06.03 MC)
The pod color in pea plant can be yellow or green. A pea plant with yellow pods (Yy) is crossbred with another pea plant with green pods (yy). What is the probability of offspring with green pods?
0%
25%
50%
75%
Question 10(Multiple Choice Worth 3 points)
(06.02 MC)
A pea plant has white flowers. It has a genotype pp. Which of the following about the gene of flower color in the pea plant is true?
The allele for white flowers is dominant in the pea plant.
The allele for white flowers is recessive in the pea plant.
The plant received both dominant alleles from both the parents.
The plant received a dominant and a recessive allele from each parent.
The characteristics of certain cell divisions are described in the following table.
Cell Division Characteristics
Characteristic Description
1 Forms diploid cells
2 Creates sex cells, or gametes
Which type(s) of cell division do the two characteristics represent?
Both characteristics represent meiosis.
Both characteristics represent mitosis.
Characteristic 1 represents meiosis and characteristic 2 represents mitosis.
Characteristic 1 represents mitosis and characteristic 2 represents meiosis.
Answer:
1. It involves multiple trials
2. 2 red: 2 white
3. Process 1 describes cloning and process 2 describes artificial selection
4. Furry Feet
5. Large scale insulin could be produced in relatively lesser time
6. A lowercase letter
7. 0%
8. rr
9. 50%
10. The allele for white flowers is recessive in the pea plant
Explanation:
1. Repetition, this means to do over and over. This would involve multiple trials and this is done to test the reliability of the results and determine if the hypothesis holds true or not.
2. If you put your cross in a Punnett square it would look like this:
R r
r Rr rr
r Rr rr
Based on your problem: R = red; r = white
If the genotype would have a dominant allele (R), then the dominant trait will come out, if it has only recessive alleles (r) then the recessive trait will come out. So as you can see there are 2 red and 2 white. So the ratio would be 2:2 or 1:1.
3. Process 1 is considered as cloning, and to be more specific, reproductive cloning. The aim of this is to produce an offspring that has the same genetic make up as the original or parent organism. Process 2 is an example of artificial selection. This is also known as selective breeding where breeders choose certain traits to pass on to the off springs by selecting the organisms that have the traits desired.
4. Furry feet of polar bears provide them extra traction when they walk on snow. The fur also provides extra warmth. They also have foot pads on the soles of their feet that help them as well. Together, polar bear have something that works like snow boots.
5. Large-scale insulin could be produced in relatively lesser time because bacteria reproduce through asexual means. They produce copies of themselves that are genetically identical. An advantage of asexual reproduction is the process occurs in a much faster rate. With that said, insulin supply would increase, which will help many diabetic patients.
6. Recessive alleles in a genotype are represented by a lowercase letter. On the other hand, dominant alleles are represented by a capital letter. Squares and circles are used in pedigree charts to represent the whole genotype of an organism for a specific trait.
7. The answer would be 0% because cystic fibrosis is a RECESSIVE gene disorder. For it to be expressed or observable in an individual , they should have two recessive alleles. As you can see in the end result, none of the offsprings have 2 recessive alleles. The genotype Aa, has a recessive allele, but it will not be expressed because the dominant trait will mask it.
8. When we talk about homozygous, this means the alleles are the same. And when you say heterozygous, this means that the organism would have a dominant and recessive allele. the recessive llele is represented by a lowercase letter. So if the organism is homozygous recessive, the genotype would have two lowercase letters. (rr)
9. The scenario shows the genotype is pp. This means that the pea plant is homozygous recessive. As explained before, recessive traits are represented by lowercase letters. So this would mean that the white color is a recessive trait. The answer would then be the allele for white flowers is recessive in the pea plant.
10. Mitosis and meiosis are both forms of cell division. Mitosis produces daughter cells that are exactly the same as the parent cell, while Meiosis produces daughter cells that are different. They produce what we call haploid cells, which has only half the chromosomes of the parent cell. Gametes or sex cells are produced through meiosis, while body cells are produced through mitosis.
Answer:
The correct options for the given problem are
1. It involves multiple trials
2. 2 red: 2 white
3. Process 1 describes cloning and process 2 describes artificial selection
4. Furry Feet
5. Large scale insulin could be produced in relatively lesser time
6. A lowercase letter
7. 0%
8. rr
9. 50%
10. The allele for white flowers is recessive in the pea plant
Which of these Earth systems is most responsible for the increases in global warming?
Biosphere
Geosphere
Cryosphere
Exosphere
The biosphere is the Earth's system that is most responsible for the increases in global warming. Thus, the correct option is A.
What is Biosphere?The Biosphere may be defined as the part or region of the earth's surface where living organisms live and interact with each other. It comprises all the ecosystems that existed on Earth.
This is the region where various greenhouse gases are significantly emitted due to humans or any other living activity and get absorbed by various layers of atmosphere.
Such greenhouse gases are responsible for the causation of global warming across the globe.
Therefore, the biosphere is the Earth's system that is most responsible for the increase in global warming. Thus, the correct option is A.
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Of the pollutants that form acids
in the atmosphere, which is
easiest to reduce?
A. sulfur dioxide
B. nitrogen dioxide
C. ozone
D. carbon monoxide
Answer:
it is A alkdjf;ldjflakd;jfal
Explanation:
Of the pollutants that form acids in the atmosphere, that is easiest to reduce is sulfur dioxide. The correct option is A.
What is Sulfur dioxide?Sulfur dioxide is a gas formed by sulfur and oxygen. It is produced when sulfur containing fuels, coals, burns, and sulfur reacts with oxygen in the air.
It is harmful gas, it causes many problems to human beings and cause many diseases such as breathing and lung when come in exposure to it.
Thus, the correct option is A. sulfur dioxide.
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Which chemical reaction shows photosynthesis? A. water + carbon dioxide + sunlight → oxygen + glucose B. carbon + oxygen → carbon dioxide C. hydrogen + oxygen → water D. nitrogen + hydrogen → ammonia
Answer:
The correct answer is A
Have a good day :)
Explanation:
Answer:
A
Explanation:
plants need sunshine to grow that`s how they eat and A is the only one that shows sunlight.
Describe the structure of a phospholipid
The phospholipids are composed of an alcohol group, generally glycerol or sphingosine, to which two long chain fatty acids and a phosphate group are attached. The phosphate group is at one end and forms a structure known as a "polar head," and is the hydrophilic part of the molecule, while long chain fatty acids form what is known as "apolar tail" or hydrophobic tail. Phospholipids in an aqueous medium form miscelas, structures where the phosphate group's polar heads are in contact with the aqueous medium, while hydrophobic tails are oriented inwards (something similar to oil drops in water). In the cells, both the internal medium (cytoplasm) and the external medium are aqueous media, therefore phospholipids, which are the major component of cell membranes, are oriented forming lipid bilayers. The polar heads are oriented towards the inner cell in the inner layer, and to the cellular bacteria in the outer layer. The hydrophobic tails are oriented towards the inside of the bilayer.
what two things can help reduce the effects of droughts
Reset
Next
Answer:
constructing dams and building desalination plants help reduce the effects of droughts
Explanation:
Answer:
Constructing dams.
Building desalination plants.
Explanation:
These are two ways in which the effect of droughts can be reduced. Although droughts cannot truly be stopped, or prevented, we are able to diminish their effects through these measures. By constructing dams and building desalination plants we can ensure that people who live in the affected areas have enough fresh water to survive, regardless of the drought.
Which characteristic of a protein may change during a dna mutation
Explanation:
When there is DNA shape mutation, one of the main things that could happend in the change of shape of the proteins, this creates a different pattern to arrange the nucleotids in the nuclei of the cells
Answer:
D
Explanation:
Helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp!!!!!!!!!
Answer:
litmus paper is b
acid is A
base is D
an ph is c
Explanation:
which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand
Answer:
I think it is: c. blood vessels in the skin narrow and contract.
Please mark brainliest if correct. :)
Hope this helps
Explanation:
Answer: Option c
Explanation: Vasoconstriction takes place during winters. During the time of winters if someone steps out of the house without coat, there will be some visible changes.
The blood vessels become narrow and lessens the amount of blood supply to the surface that is exposed to the environment, this is done to reduce the heat loss by the body.