Which of the following statements accurately describe variation in human skin color?

Data support a correlation between UV intensity and skin color variation.

Human skin color variation is mostly determined by the types and amounts of melanin present in the skin.

Variations in human skin color can be quantified, or measured.

On average, the skin color if indigenous peoples around the world correlates with UV intensity in their environments.

All of these are accurate.

Answer:

It is generally believed that the cells that have the most mitochondria in them are the muscle cells.

Answer:

Muscle Cell

Explanation:

Answer:

Human activities are causing imbalance of carbon based molecule.

Explanation:

It is the human intervention in the most unavoidable way that is affecting the environmental cycle and one of these cycle is the carbon cycle. Human activities such as burning of fossil fuels, excessive cutting of trees, rising green house effect, use of CFCs etc is hindering the environment process and hence causing imbalance on the earth.

Land plants no longer required water as a medium for reproduction with the evolution of seeds and pollen. Seeds and pollen are specialized structures that allow plants to reproduce without the need for water.

This development has allowed plants to colonize a variety of habitats on land, including arid environments, where water is scarce. Land plants evolved from aquatic ancestors, and the earliest land plants likely required water for reproduction. However, as plants adapted to life on land, they developed structures that allowed them to reproduce without water. Fruits and roots are important structures for land plants, but they are not directly involved in reproduction.

Flowers and leaves are also important for land plants, but they evolved after seeds and pollen and are not required for reproduction in all plant species. Cell walls and rhizoids are important adaptations for land plants, but they are not directly related to reproduction. Lignified stems are important for structural support in land plants, but they are not directly involved in reproduction.

Therefore, the correct answer is 5 seeds and pollen.

To know more about pollen visit:

https://brainly.com/question/29986668

#SPJ11

According to Poiseuille's law, if the radius of a blood vessel decreases by 2, the resistance of that blood vessel will increase.

Poiseuille's law describes the relationship between the radius of a blood vessel, the flow rate of blood through the vessel, and the resistance to that flow. According to the law, the resistance (R) of a blood vessel is inversely proportional to the fourth power of its radius (r). In mathematical terms, the formula is R ∝ 1/r^4.

When the radius of a blood vessel decreases by 2, it means that the new radius is half of the original radius. If we substitute this new radius into the Poiseuille's law equation, we find that the resistance will increase significantly. Since the resistance is inversely proportional to the fourth power of the radius, decreasing the radius by 2 will result in an increase of (1/0.5)^4 = 2^4 = 16 times in resistance.

In simpler terms, if the radius of a blood vessel decreases, the available space for blood to flow through becomes smaller. This reduction in space leads to increased friction between the blood and the vessel walls, which in turn increases the resistance to blood flow. Consequently, the heart has to work harder to pump the blood through the constricted blood vessels, leading to increased pressure within the vessels.

In summary, according to Poiseuille's law, when the radius of a blood vessel decreases by 2, the resistance to blood flow through that vessel increases significantly. This highlights the importance of maintaining healthy blood vessel function and avoiding conditions that can cause constriction or narrowing of the vessels.

Learn more about Poiseuille's law

brainly.com/question/31595067

#SPJ11

If shark fossils are found below flowering plant fossils, it suggests that the sharks existed before the flowering plants. This is because the principle of superposition states that, in a series of undisturbed rock layers, the oldest rocks will be at the bottom and the youngest rocks will be at the top. Therefore, if shark fossils are found in lower rock layers than flowering plant fossils, it means that the sharks lived and died before the flowering plants evolved and were fossilized.

While this answer may provide helpful information regarding your assignment, it is important to remember that using it verbatim could be seen as plagiarism. To avoid this, it is best to cite your sources and use your own words to ensure a better answer.

~~~Harsha~~~

Answer:

D) 22 units

Explanation:

15-(-7)=22

Answer:

first is syrup than dish soap than milk than water than oil.

Answer:

Plants reproduce sexually by dropping pollen into another flower. This pollen can go into a flower or, it can drop to the grass. That's when asexual reproduction comes in. The ground absorbs the pollen and the pollen acts like a seed, making a new plant.

See the attached picture if you wanna know what pollen looks like.

The correct response is C ;  That adding the A will lead to a frameshift, which will result in an early stop codon and a shortened protein.

1. The definition of a frameshift mutation is an insertion or deletion of any nucleotide in the genome that is not in multiples of three nucleotides that can code for any amino acid.

2. An insertional frameshift mutation is present in the case described. The shortened protein and insertional frameshift mutation are created as follows:

3. The mRNA produced from the provided sequence demonstrates that the stop codon develops early and a brief protein known as a truncated protein is produced.

4. A truncated protein is nothing more than a brief protein created by a mutation in which premature termination occurs.

5. As a result, adding adenine after guanine will result in an insertional frameshift mutation, which will shorten the protein and trigger an early stop codon.

Learn more about to wild-type gene visit here;

https://brainly.com/question/18915054

#SPJ4

Full Question ;

The following sequence of dna is the normal, wild-type gene: 5' tac cgg tta gtt agc cga tag 3' an insertion occurs during dna replication, causing an additional adenine to be inserted into the nucleotide strand after the guanine shown in red. what effect will this have on the final protein?

A The addition of the A will cause a single amino acid substitution in the codon in which it occurs.

B The addition of the A will cause a frame shift, so that all the amino acids after the mutation will change. The protein will be a normal number of amino acids.

C The addition of the A will cause a frame shift, resulting in a premature stop codon and a truncated protein.

D The addition of the A will cause a frame shift, resulting in the loss of the normal stop codon and an abnormally long protein with an altered amino acid sequence.

Answer:

The gases that contribute most to the Earth's greenhouse effect are: water vapour, carbon dioxide, nitrous oxide, methane and ozone. The contribution that a greenhouse gas makes to the greenhouse effect depends on the amount of it that it is the atmosphere and how much heat that particular gas absorbs and re-radiates.

Explanation:

Answer:

An increase in gases in the atmosphere that absorb heat

Explanation:

Greenhouse gases such as CO2, can trap heat and alter our climate and to some extent cause the greenhouse effect.

True. Opioids, including hydrocodone (Vicodin), are often used to suppress nausea and vomiting. Opioids, including hydrocodone (Vicodin), can suppress nausea and vomiting by acting on the central nervous system (CNS).

They inhibit the activity of the vomiting center in the brainstem and also reduce the sensitivity of the gastrointestinal tract to emetic stimuli. However, this effect may not be universal and can vary depending on the individual and the specific situation. In some cases, opioids can actually cause nausea and vomiting as a side effect. They are commonly used to manage pain, including chronic pain, acute pain, and pain associated with cancer or surgery. In addition to their pain-relieving effects, opioids can also cause a range of side effects, including constipation, dizziness, confusion, respiratory depression, and nausea/vomiting.

Learn more about opioids here:

https://brainly.com/question/26332595

#SPJ11

here you g its here gggggggg

i

Answer:

A. The type of folds made

Explanation:

independent varible is the one that changes to affect the outcome of the dependent variable

Answer:

The correct answer is : B. Carbon dioxide gas is produced as a by-product of alcohol fermentation but not lactic acid fermentation.

Explanation:

In t5he lactic fermentation, the end product is lactic acid whereas in Alcohol fermentation produces by-product carbon dioxide gas which makes it more suitable for baking.

Alcohol fermentation takes place the bread is made as gas is what puts tiny air bubbles within the dough of the bread and makes bread lighter consistency we are used to. Yeast helps in producing carbon dioxide by alcohol fermentation.

Answer:

B. Carbon dioxide gas is produced as a by-product of alcohol fermentation but not lactic acid fermentation.

PLATO//EDMENTUM

The rate of water transport in a plant is primarily driven by transpiration, which is the process of water loss from the leaves to the atmosphere through small pores called stomata .And answer for the question is option B.

When humidity increases, the air surrounding the plant becomes more saturated with water vapor, which reduces the gradient for water loss from the leaves. As a result, less water is lost through transpiration, which can lead to an increase in the rate of water transport in the plant.

Option A, the removal of leaves and a seal of the excision sites, and option D, blockage of the stomata, would both decrease the rate of water transport by reducing the surface area available for transpiration .Option C, a rise in temperature, can increase the rate of transpiration and water loss, but it may not necessarily increase the rate of water transport, as the plant may not be able to take up water fast enough to compensate for the increased loss.

learn more about water here:

https://brainly.com/question/28465561

#SPJ4

Answer:

Yes, when two root tendrils from a strangler fig touch, they fuse together. Because the roots wrap around the trunk of the host tree, they overlap a lot and eventually form a mesh that completely encircles the host.

The “host” being a cypress tree.

Explanation:

Answer:

It's option C

Explanation:

Ocean is getting acidic

The question is formatted a bit weird. Shellfish are in danger of being extinct because carbon makes the ocean more corrosive and acidic, making it harder for them to build shells.

An environmental indicator of habitat health may be the sensitivity of damselfly larvae to chemical pollutants. True

Nymphal damselflies have six delicate legs, huge eyes, and little wing buds on the rear of the thorax. They are aquatic, slender, and typically dull insects. The three gills are arranged in a tripod shape and resemble leaves or paddles. Although the reasons for a population collapse are rather diverse, they may include predation, waste buildup, and a lack of natural supplies necessary for growth and reproduction. Competition between individuals of the same species and an originally overpopulated group can also contribute to it. Any association or interaction between two diverse species is referred to as symbiosis. The type of symbiosis that occurs depends on whether health

To learn more about health  please click on below link

https://brainly.com/question/8411886

#SPJ4

Explanation:

it shrinks due to the low moisture content

if a pile of dead leaves is left in a warm, damp place it gradually shrinks. This is because:

According to the given question, were are asked to find the reason why a pile of dead leaves shrinks when placed in a damp environment.

As a result of this, we can see that the reason why the dead leaves shrinks when placed in a warm, damp place is because of the low moisture content which makes it shrink.

Read more here:

https://brainly.com/question/24159918

Answer:

Each step has two choices.

Potometer is the apparatus which was used to investigate how temperature affects transpiration rate.

This is also referred to as transpirometer and it measures the level of water uptake in a leafy shoot.

Increase in temperature will lead to transpiration which can be detected by using the potometer to measure the water level.

Read more about Potometer here https://brainly.com/question/9014885

#SPJ1

Answer:

A compound microscope is an upright microscope that uses two sets of lenses (a compound lens system) to obtain higher magnification than a stereo microscope. A compound microscope provides a two-dimensional image, while a stereo microscope provides a three-dimensional image.  

Explanation:

One source of genetic variation in meiosis is Recombination or crossing over.

A zygote is formed when one gamete from each parent combines fertilization. In meiosis, each gamete has a unique set of DNA because of recombination and independent selection. The resulting zygote is a one-of-a-kind creation as a result of recombination.

In prophase I, homologous chromosomes, one from each parent, pair along their lengths, gene by gene, resulting in recombination or crossing over. Chromosomes break and then rejoin, exchanging some of their genes. The combination of genes on the chromosomes is now novel.

During meiosis, the process of chromosomes moving at random to separate poles is called an independent assortment. After meiosis, a gamete will have 23 chromosomes, but independent assortment means that each gamete will have one of many different chromosome combinations.

This rearranging of genes into one-of-a-kind combinations raises a population's genetic variation and explains the variation between siblings with the same parents.

Know more about meiosis here: https://brainly.com/question/15345737

#SPJ4

I believe that there any limits on what a person can change because some things are beyond our control and no matter what you do, it cannot change the  fact.

There are a lot of things that that people cannot compromise on. They include:

Therefore, I believe that there any limits on what a person can change because some things are beyond our control and no matter what you do, it cannot change the  fact.

Learn more about limitations from

https://brainly.com/question/25609681

#SPJ1

We can detect sweet, sour, salty, bitter, and savory tastes because of the presence of out taste buds. It has microvilli that are described to be very sensitive microscopic hairs. They are the one responsible for sending the message of taste to the brain so you will be able to know or differentiate the different taste of food. Each taste has a the presence of chamical substances that is stimulating the receptors on the taste buds. We are able to taste our food because of the sensory cells in our taste buds. We identify the flavor of our food by the odor that comes from our sense of smell because flavor includes taste and odor.

Answer:

Both membranes contain ATP Synthase Proteins.

Based on their general appearance, cells are categorized into 4 main cell type groups. Epithelial cells Endothelial cells either (3) neuronal or (4) fibroblast.

a) Eosinophil enhances responses to protozoa and helminths by staining with the acidic dye eosin, having histamine and the main basic protein in granule form.

b) Identifies aberrant cells, attaches to them, and releases the chemicals perforin and granzyme, which together with natural killer cells cause apoptosis in the target cells.

c) A sizable, agranular phagocyte that coexists with macrophage in areas like the brain and lungs.

d) Stains with the basic dye methylene blue, contains significant amounts of histamine in its granules, and promotes basophil inflammation and allergic reactions.

To know more about cell type groups visit:-

https://brainly.com/question/14186648

#SPJ4

Answer:

The sense organs in the human body are  the eyes, ears, nose, tongue, and skin. The sense organs are the body organs by which humans are able to see, smell, hear, taste, and touch or feel. The five sense organs are the eyes (for seeing), nose (for smelling), ears (for hearing), tongue (for tasting), and skin (for touching or feeling).

(I'm so sorry if it's wrong)

Hope this helps!

Answer:

Whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

Explanation:

The explanation is basically what I had for the answer.

Hope I gave the right answer. It would be wrong for you to have a wrong answer.