Biology High School

what is the relationship between UV radiation and skin color?​

Answers

Answer 1
The erythema response of skin to ultraviolet radiation (UVR), i.e., the sunburn reaction, has long been known to correlate with skin color. Dark-skinned individuals are able to tolerate a longer sun exposure than light-skinned individuals. Skin color in humans is mainly determined by the quantity, quality, and distribution of the complex biopolymer, mel~ni1_1, and its organized form, the melanosome (1,2}; melanm IS thought to protect skin from the deleterious effects of UVR.
Answer 2

Answer:

Since strong sun exposure damages the body, the solution was to evolve skin that was permanently dark so as to protect against the sun's more damaging rays. Melanin, the skin's brown pigment, is a natural sunscreen that protects tropical peoples from the many harmful effects of ultraviolet (UV) rays.

Explanation:

Related Questions

Name the levels of biodiversity?​

Answers

genetic, species, and ecosystem diversity.

A numbered diagram of the Earth's layers is shown below.

Answers

Answer:

1 & 5

Explanation:

:)

How do introduced species become established in a new ecosystem

Answers

introduced to a habitat similar to their own introduced to a habitat different than their own outcompete native species generally have no native predators generally have native predators often have high reproductive rates often have low reproductive rates can tolerate a range of conditions
introduced to an environment close to their own outcompete native species usually have no native predators generally have native predators often have high reproductive rates often have low reproductive rates may tolerate a variety of conditions

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If the offspring was 50% purple and 50% white. what were the allele combinations for the parents?

Answers

Answer:

Aa X aa

Explanation:

Genotype of the offspring is Aa Aa aa aa

Look at the graph to the right. What does it show?

Answers

Answer:

The graph shows that corals in the Caribbean reefs are declining

Explanation:

do all animals go through metamorphosis during their life cycle

Answers

Answer:

These metamorphosis examples are of both insects and amphibians -- the only creatures that go through this process. Amphibians are the only animals with a backbone that can do it.

Answer:

the frog and the ladybug go through a metamorphosis. The ladybug larva looks like a completely different insect from its final adult form. The frog goes through a tadpole stage in which it lives underwater, and then develops into a frog that can live on land.

Explanation:

The total wind power capacity in the united states in 2000 was about 2540MW. By 2015, the total wind power capacity in the United States was about 72,500MW Calculate percent change in the total wind power capacity in the United States from 2000 to 2015. Show the work

Answers

Answer:

2754.33% increase

Explanation:

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [(72500 MW - 2540 MW) / 2540 MW] * 100%

Percent change = 2754.33% increase

Power is the amount of energy transferred or converted per unit of time. In the International System of Units, the unit of power is the watt, equal to one joule per second.

The total increase is 2754.33% increase

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [tex]\frac{[(72500 MW - 2540 MW)}{ 2540 MW }* 100%[/tex]

After solving the equation the percent change = 2754.33% increase.

For more information, refer to the link:-

https://brainly.com/question/25068613

PROYECTO GENOMA HUMANO Fecha Acontecimiento 1866 1868 1951 1953 1956 1958 1960 1970 1973 1977 1978 1975-1979 1982 1985 por favor escriban un acontecimiento en cada año

Answers

Answer:

ok 1866

Explanation:

Given the following DNA code, how would this segment be transcribed into
mRNA? TACCCGAТA СТcccТТСААТТ

Answers

whooptysong

listen it

What does selectively-permeable mean?
Nothing gets through
The cell lets only large substances through
The cell controls what passes in and out of the cell

Answers

The cell controls what passes in and out of the cell

Answer:

The cell controls what passes in and out of the cell.

Explanation:

In one to three sentences, describe what happens
during the reduction stage of the Calvin cycle.

Answers

Answer:

In the light-independent reaction, products of the light reaction are used to make sugars. Here, in the Calvin cycle, the enzyme, RuBisCO, catalyzes the fixation of CO2 with Ribulose 1,5-bisphosphate (RuBP). Organic molecules are reduced and RuBP is regenerated

Explanation:

Answer:

ATP and NADPH transfer chemical energy to 3-PGA.

Glyceraldehyde 3-phosphate (G3P) is created.

G3P is used to make sugar.

Explanation:

can someone pls answer the first 2

Answers

There will be a total of four haploid cells produced at the end

There will be one chromosome at the end of each cell

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Please help me!!

How does DNA change from generation to generation in asexual organisms?

1. Cloning
2.Mutation
3.Variation
4. Gene pairing

Answers

Mutation- asexual means only one parent so it would be a clone but when mutated it changes

What are some of the environmental impacts of the flooding during Hurricane Harvey? (Be sure to include statements about impacts to habitat and wildlife.)

NEED HELP ASAP! DUE TODAY! Thank You!

Answers

Answer:

Financial support

Explanation:


Why could tropical rain forests be called the "medicine chest of the Earth?

Answers

Because it gives food for LOTS of living organisms
It gives lots of food

does exocytosis require energy?

Answers

Answer:

There are two types of vesicle transport, endocytosis and exocytosis (illustrated in the Figure below). Both processes are active transport processes, requiring energy. Illustration of the two types of vesicle transport, exocytosis and endocytosis.

Explanation:

So in a simple explanation yes they require energy:)

Which molecule is primary responsible for the differentiation of cells

Answers

RNA molecules is the right answer... RNA molecules are an important type of intracellular differentiation control signal. The molecular and genetic basis of asymmetric cell divisions has also been studied in green algae of the genus Volvox, a model system for studying how unicellular organisms can evolve into multicellular organisms.

Hope it helps you...

1 What are four of the qualities required for a healthy relationship ​

Answers

Answer:

Truthfulness. Both of you are honest with each other, not just because you have to, but because you enjoy sharing the truth together.

Kindness. You help each other without expecting in return. ...

Compassion. You feel each other’s joy and pain. ...

Respect. ...

Explanation:

Two identical alleles for the same gene present in a cell

Answers

Answer:

The correct answer is D.

Please somebody help me with this.​

Answers

Answer:

Making food

Explanation:

What conversion factor fraction is used to convert
gallons to liters?
3.8 liters
A. 1 gallon
1 gallon
B. 3.8 liters
1 liter
C. 4.2 cups
4.2 cups
D.
1 liter
SUBMIT

Answers

C. 4.2 cups. I think

List 5 Biotic Factors of This Ecosystem Pictured.

Answers

Answer:

I'm gonna give you more than 5 so you can choose:

seal, human, whale, bird, shark, grass, coconut tree, and crab.

Explanation:

Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.

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Answers

The answer is c bc the deeper the layers or geographic properties are which is dirt or soil land rocks or other properties are due to overtime probably thousands or millions of years of eroding or other phenomenons

Answer:

h

Explanation:

Why is the answer to this question c and not b?

Answers

Because there is a higher concentration of solute on the left side of the membrane. For example since salt is solute, it will draw the water to that desired direction, therefore resulting in the water molecules moving to the left. Hope this helped! :!

Answer:

Option C

Explanation:

See on left side there are more particles on comparing to right side

The concentration of solute is more on left sideSo as diffusion has to happen then the molecules will move from left to right

Two parents with blue eyes (bb) can have a child with brown eyes (Bb or BB)
0 T True
F False

Answers

False................................

9. When a person is suffering from an infection, such as strep throat or
chicken pox, his blood usually shows a significant increase in the number
of *
enzymes
antibodies
hormones
sugars

Answers

Answer:

antibodies

Explanation:

^^ I’m pretty sure that’s the correct answer :) have a good day

How are green algae related to land plants? (Select all that apply.)
both have chloroplasts
both lack a cell wall
both have a cell nucleus
both lack a cell nucleus
both have a cell wall

Answers

Answer:

bro whats the real answer i got a 70 percent bc the person who answered and the owner of this question said thank you i thought it was legit dang

Explanation:

The green algae relate to land plants in the following ways:

They both have chloroplasts.Both have a cell nucleus.Both have a cell wall.

Thus, the correct options are A, B, and E.

What are Green algae?

Green algae may be defined as a type of eukaryotic organism that has photosynthetic pigments a and b. Such a type of algae also stores carbohydrates as starch.

Green algae mostly live in freshwater environments, ranging from unicellular flagellates to more complex multicellular forms.

Both land plants and green algae have a photosynthetic organelle known as chloroplast. The cell wall of land plants as well as green algae are made up of cellulose, hemicellulose, and pectins.

Both eukaryotic classifications possess a well-defined cell nucleus, nuclear membrane, and other membrane-bound cell organelles.

Therefore, the correct options for this question are A, B, and E.

To learn more about Green algae, refer to the link:

https://brainly.com/question/16165728

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Which helps prevent errors in DNA replication?
A. DNA polymerase makes five DNA molecules from each single strand, and keeps the best five.
B. There are no complementary base pairs in DNA
C. DNA is produced in the ribosomes
D. DNA polymerase checks the DNA for errors

Answers

D. This is to “proofread” the DNA
Answer: Complementary base pairing reduces errors.

Help me please!!!
This is due today!!! I will mark brainstest answer to who ever answers first.​

Answers

Answer:

A car slowing as it reaches a traffic light

Explanation:

please give the brainstest

Identify the phenotype of the offspring represented by the question mark in Figure 11-4:

Answers

Answer:

The guinea pig's phenotype (physical appearance) will be rough white hair

Other Questions
Suppose you design a banking application. The class CheckingAccount already exists and implements interface Account. Another class that implements the Account interface is CreditAccount. When the user calls creditAccount.withdraw(amount) it actually makes a loan from the bank. Now you have to write the class OverdraftCheckingAccount, that also implements Account and that provides overdraft protection, meaning that if overdraftCheckingAccount.withdraw(amount) brings the balance below 0, it will actually withdraw the difference from a CreditAccount linked to the OverdraftCheckingAccount object. What design pattern is appropriate in this case for implementing the OverdraftCheckingAccount class Lamar lives along the eastern coast of the United States, where the Gulf Stream influences the temperature. If the Gulf Stream cooled, what would happen to that climate? Which of the following is true about Athenian democracy?O A.Women were allowed to voteB.Poor men could voteOcC.Foreigners could become citizens at 18ODSlavery was illegal During a sprint, a basketball player is traveling at +3 m/s. Four seconds later, the player is traveling at 5 m/s. The average acceleration of the basketball player over the last 4 seconds is: Create a real life example that can be modeled by the expression 2 4. Which sentence uses the word teeming correctly?The two groups were talking about teeming up together to work on the fundraiser.The teeming cart went flying across the parking lot when it was bumped by a car door.The waiter sat down at a teeming table and began to fold napkins while he waited for customers to start arriving.The small pond was teeming with tadpoles and minnows. need help for geometry question Suppose Z varies directly with X and inversely with Y where X equals 3Y equals one and Z equals six what is the value of Z when X equals seven and why equals four Is 4 to 7 the same as 7 to 4? Explain why or why not. Please help! Simplify. Your answer should contain only positive exponents. Write the economic importance of grassland located in middle Europe Cesar Chavez helped turn a labor strike into a campaign for:A. Civil rights. B. Fighting monopolies. C. Immigration laws. D. Industrial workers. What is the area of this triangle in the coordinate plane?6 units8 units 24 units 48 units A graph with a line connecting coordinates begin ordered pair 0 commas 6 end ordered pair and coordinates begin ordered pair 8 commas 0 end ordered pair In addition to official restriction white southerners blocked Africa American from voting by LMNP is rotated 90 degrees clockwise around the origin. What are the coordinates of P?A. P (9,0)B. P (0,-9)C. P (-9, 0)D. P (0,9) Research Team A grows bacteria in a Petri dish. There are initially 200 bacteria in thedish and the number of bacteria increases 4% each hour. The researchers use theexpression 200(r)* to estimate the number of bacteria present after t hours.What is the value of r in the expression?A. 0.04B. 0.96C 1.04D. 4.00 Which of the following characteristics is NOT a commonly malleable (changeable) trait in human beings?hair colorheightnumber of fingersweight Aristotle divided ethos into issues of intelligence, character, and goodwill. Which quality is most important to you when you hear a speech? Why? Nobody was able to answer this correctly! Would you? GIVING BRAINLIST Percents to decimals.What is 3.22 changing it to a decimal