Hey y'all I need help with this bio question: what are the pros and cons of different skin tones in different parts of the world?

Answers

Answer 1
Oh this one is so cool!

It basically all boils down to Vitamin D! We need this essential vitamin to help our body build hormones and regulate calcium. Our bodies make Vitamin D when we are exposed to the UV rays found in sunlight. But as we all know, too much sunlight isn’t good because these UV rays can harm us. Melanin (the chemical that our bodies produce to darken skin tone and hair color) provides protection from UV rays by absorbing them. However, this means that the more melanin that is produced by someone’s body results in less absorption of UV rays and a decrease in Vitamin D production. But for someone living around the equator or in the tropics that doesn’t matter because there’s lots of sun all the time. So for humans living in these areas where there’s lots of sunlight year round, it’s beneficial to have darker skin to protect from the harm of UV rays. People living in these areas still get plenty of Vitamin D though because of that year round sunshine.

Now what about those who’s skin has less melanin, such as those found in the higher latitudes? Well with less sunlight year round, their bodies had to adapt to be able to get enough Vitamin D. So less melanin is produced by the body in order to absorb the lesser amounts of UV rays to make Vitamin D. Lighter skin is, therefore, more beneficial the farther away you go from the tropics.

So essentially:
Pro of Darker Skin tones
-Protection from harmful UV rays

Con of Darker Skin tones
-Less absorption of UV rays and less production of Vitamin D

Pro of Lighter Skin tones
-Greater absorption of UV rays and more Vitamin D production

Con of Lighter Skin tones
-Less protection from harmful UV rays (resulting in sunburns and, in extreme cases, skin cancer)

This is of course the biology answer. The social impacts of different skin tones is a whole different story that you can ask in the history section.

Related Questions

1) Sembrar 5 granos de maiz en cada uno de los siguientes recipientes sustratos, arena, canto rodado, arcilla, tierra negra abonada. 2 Medir semanalmente por un mes su crecimiento. Describe lo observado y redacta conclusiones de la experiencia

Answers

Answer:

El contenedor que tiene fertilizantes crecerá más.

Explicación:

El contenedor que tiene fertilizantes en dosis óptimas crecerá a un ritmo más alto y producirá más vegetación en comparación con otros contenedores que tienen poco o ningún fertilizante porque los fertilizantes tienen los nutrientes que necesitan las plantas en mayor cantidad para su crecimiento y desarrollo. El fertilizante contiene nitrógeno, fósforo, potasa y algunos otros nutrientes que contribuyen al crecimiento y desarrollo del cuerpo de la planta, por lo que podemos concluir de este experimento que el contenedor con nutrientes crecerá más rápido que otros.

compare and contrast
4. How are multicellular organisms different from unicellular organisms?
Unicellular
Both
• made up of eukaryotes
• processes needed for
survival are camed out
within.. Algae (?)
Multicellular
Eukaryotic cells working
• made up of
together.
• each type or tenus
carry out
all life
processes
that is important to the

Answers

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

IF I CAN HAVE AN ANSWER BY THE END OF THE DAY THAT WOULD HELP! I have to get this in by tomorrow morning at 8:30am. April 1 2021 :)
÷
One day, at a certain time, a student measured the shadow of a fence and found that it was 2 m long. The next day, she measured the shadow of the same fence at a different time and found that it was 3 m. long. What can you infer about the time of day at which the student measured the shadows? Explain.​

Answers

Answer:

The time of day the second time the student measured the length of the fence shadow was either earlier or later than the first time she measured the shadow.

Explanation:

As the first time the student measured the shadow of the fence gave an answer of 2 meters, the second time gave an answer of 3 meters. For this reason, the shadow is longer in length. This means that the sun is closer to the horizon, yielding a light beam that is closer to the ground.

Moreover, if the sun was directly above the fence post, there would be no shadow. However, because the sun is closer to the horizon, showing that it is earlier or later then the first measurement, the second measurement has a longer shadow.

What he/she said up above

whats best describes the relationship between cells, DNA, and proteins

Answers

Cells contain DNA, which controls the production of proteins

if a blue light shines on a green dress what colour would the dress be?​

Answers

answer: if you shine a blue light on a green dress the blue would be reflected

One choice contains ONLY biotic factors that might be found in a home aquarium's environment. That is
A)
fish, snail, and plants.

B)
fish, snail, and gravel.
water, gravel, and the glass wall of the aquarium.

D)
fish, dissolved oxygen, and bacteria living in the water.

Answers

Answer:

A) fish, snail, and plants

Explanation:

For each genotype below indicate whether it is het3rozygous or hom0zygous.

Answers

Answer: Het3rozygous genotypes are the ones with a capital letter and a lowercase letter; Hom0zygous genotypes are the ones with either two capitals or two lowercase letters

Explanation:

In your letter, you need to explain how the theory of evolution is supported by evidence. Be sure to include the 4 pieces of evidence for evolution as well as an example of each.Evolution is a process of

Answers

Answer:Brudder bought a coconut, he bought it for a dime

His sister had anudder one, she paid it for de lime

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she called de doctor, woke 'im up

And said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

Now, lemme get this straight

You put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you called your doctor, woke 'im up"

Said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

You put de lime in de coconut, you drink 'em bot' togedder

Put de lime in de coconut, then you feel better

Put de lime in de coconut, drink 'em bot' up

Put de lime in de coconut and call me in the morning

Whoo-ooh-ooh, ooh-ooh-oooh, ooh-ooh, ooh-ooh-ooh-ooh

Whoo-ooh-ooh, ooh-ooh-oooh, ooh-ooh-ooh, ooh-ooh-oooh

Whoo-ooh-ooh, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo

Brudder bought a coconut, he bought it for a dime

His sister had anudder one, she paid it for de lime

She put de lime in de coconut, she drank 'em bot' up

And put de lime in de coconut, she called de doctor, woke 'im up

Said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, now lemme get this straight"

You put de lime in the coconut, you drink 'em bot' up

Put de lime in the coconut, you drink 'em bot' up

Put a lime in the coconut, you drink 'em bot' up

Put de lime in the coconut, you're such a silly woman

Put a lime in the coconut and drink 'em bot' togedder

Put de lime in the coconut, then you feel better

Put de lime in the coconut, drink 'em bot' down

Put de lime in your coconut, and call me in the morning"

Whoo-hoo, ain't there nothin' you can take?

I say "Whoo-hoo-ooh to relieve your bellyache?"

You say "Well whoo-hoo-ooh, ain't there nothin' I can take?"

I say "Whoo-hoo-ooh, to relieve your bellyache?"

You say "Yaa-ahh, ain't there nothin' I can take?"

I say "Yaa-ahh, to relieve this bellyache?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, you're such a silly woman"

Put de lime in the coconut and drink 'em bot' togedder

Put de lime in the coconut, and you feel better

Put de lime in the coconut, drink 'em bot' up

Put de lime in the coconut and call me in the morning

Yes, you call me in the morning

You call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

Well, if you call me in the morning, I'll tell you what to do

Explanation:

HELPPPPP
Calcium-41 has a half-life of 80,000 years. At the end of 240,000 years,
how much Calcium-41 would remain in a sample initially containing 60
micrograms? *
A 7.5 micrograms
B 60 micrograms
C 15 micrograms
D 30 micrograms

Answers

If the half-life is 80,000 years, then 240,000 years would be equivalent to three half-lives. In other words, the initial amount of the radioactive calcium-41 would have been reduced in half three times over. Mathematically, this can expressed as

calcium-41 remaining = initial mass of calcium-41 × (0.5)³.

Since we are given the initial mass of calcium-41, the amount of calcium-41 remaining after 240,000 years would be:

60 μg × (0.5)³ = 7.5 μg, or 7.5 micrograms.

7.5 is the answer I think hope this helps

Solar radiation warms earths surface and atmosphere and _____ gasses absorb the energy and radiate it back toward Earth’s surface.

Answers

Answer:

solar

Explanation:

What was the purpose of the Kinetic energy lab, the importance of the topic, and the question you are trying to answer? Ed genuity

Answers

Answer:

It is important to learn about, and very interesting. I would still like to learn more about it!

Explanation:


This is a map of a _ landform because ?

ASAP

Answers

Answer:

This is a map of a Mountain landform because the rings get smaller until the top of the mountain. Also the altitude goes up until it reaches the top.

Explanation:

3 Which of the following are not biotic or abiotic factors in an ecosystem? A B C water and air rocks and energy plants and animals cultural components D

Answers

Answer:

cultural

Explanation: this is the only one that is not biotic or abiotic

starch is a polysaccharide that contains...

A. one molecule of glucose
B. two molecules of glucose
C. many molecules of glucose
D. none of the above
HELP​

Answers

Answer:

many molecules of glucose

can i use purified water for my aquarium?​

Answers

Answer:

You should use mineral water but you can also use tap water too, as long as you remove chemicals that are potentially toxic to fish.

Explanation:

Answer:

You can use purified water if you like but mineral water is the best for fish

Explanation:

They both arent toxic but its whatever one you want

The huge number of fish being harvested by humans from the oceans would be an example of

valuing biodiversity

exotic species introduction

over exploitation

humans being animals which is only natural

habitat destruction

Answers

Answer:

Over exploitation

Explanation:

(_______) stars, however, will last for several billion years, because
they burn their fuel much more slowly. *

Answers

Answer:

Smaller

Explanation:

Life Cycle of a Star

Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Smaller stars, however, will last for several billion years, because they burn their fuel much more slowly.

The cell membrane is different from the cell wall.

The cell membrane...

a. is found in all cells
b. is made of chromatin
c. does not allow substances in or out of the cell
d. produces energy

Answers

Answer:

a, it is found in all cells

Explanation:

A. Is found in cells

phloem contains specialized cells that move sugars and other nutrients both up and down in plants. Which object is the best model of one of these cells

Answers

Answer: B- Drinking Straw

Explanation:

1. What are the six kingdoms in the six-kingdom
system of classification?
2. What are two things that make archaebacteria
difficult to study?
3. What is the most heterogeneous kingdom in
terms of morphology?
4. What is the difference between a kingdom and a
domain?

Answers

1) The six kingdoms in the six-kingdom system of classification are Archaebacteria, Eubacteria, Protista, Fungi , Plantae and Animalia
2)The two things that make archaebacteria difficult to study are that archaebacteria lived only in these extreme environments and that we don't know how to feed them for studying them
3) Protista is the most heterogeneous kingdom in terms of morphology
4) The difference between kingdom and domain is that the kingdom is one of the five major groups of living organisms while the domain is one of the three taxonomic categories of living organisms above the kingdom level.
Sorry if i’m late to answer it
I hope it’s correct

What is the coding region of DNA called? Explain.
a- A gamete
b- A allele
c- A sister chromatid
d- A gene

Answers

Answer:

D-Gene

Explanation:

Because of the protein it get's. When it gets the protein it needs then they develop the gene therapy.

What is an animal that eats producers called?
producers
O a
Ob
ос
carnivores
consumers
Od
herbivores
I’m

Answers

Answer:

The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers.

Explanation

An animal that eats producers is called herbivore. Therefore, option (D) is correct.

Herbivores eat plant matter such leaves, stems, fruits, and seeds. These organisms get energy and nutrients from producers, the main source of organic matter in ecosystems.

Cows, rabbits, deer, and many insects are herbivores. Herbivores transform plant biomass energy into a form that higher trophic levels can consume, making them vital to ecosystem energy and nutrient cycles. Therefore, option (D) herbivore is the correct option.

Learn more about herbivore, here:

https://brainly.com/question/16786804

#SPJ6

How is a penguin able to survive in the warm, Galapagos island weather?

Answers

Living in the sun
To prevent overheating in the sun, the Galapagos penguin has less body fat and fewer feathers than cold-weather penguins, and has areas of bare skin that they use to radiate heat away from their bodies. ... Penguins can't sweat to lose heat, so the Galapagos penguins pant when they're hot, like dogs.


All living things are classified into kingdoms based on specific characteristics. Which of the following are only characteristic of the plant kingdom?

Answers

Answer:

divided into phylaits is the biggest group of living things

Answer:

autotrophic, eukaryotic cells, cell wall present  

Explanation:

help 100 points please

Answers

Answer:

your answer would be B.  the vascular tissue

Explanation:

There are two principal tissue types that make up the veins of plants: The xylem moves water and minerals. This flows from the plant’s roots upwards. The phloem moves food energy around the plant. This flows in whichever direction the plant needs it to flow. These two tissue types make up the vascular bundle of the plant.

hope you have a nice day

        -kay :)

I agree as well, I think the answer is B.

What factors limit the size of a cell?

Answers

Answer:

Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell's function is determined, in part, by its shape.

Explanation:

I hope this helps you!

surface area to volume ratio. a smaller cell is more effective in transporting materials.

compare and contrast animal cells, plants cells and prokaryotic cells​

Answers

Prokaryotic cells do not have a nucleus, animals cells have a nucleus and plant cells have a nucleus. Animal cells and plant cells are both eukaryotic.

WILL GIVE BRAINLIEST
Which of the following lifestyle modifications is NOT likely to be helpful in controlling genetically linked diseases?

A) taking a healthier diet
B) exercising regularly
C) maintaining a proper weight
D) planning to quit smoking at 40
E) regulary having medical check ups

Answers

Answer:

E) regularly having medical exams

Explanation:

Hope this helps!!

Answer:

D) Planning to quit smoking at 40

Explanation:

A decrease in the number and variety of autotrophs in an area can devastate the entire food web of an ecosystem. A forest fire for example, can cause many of the autotrophs to die. The impacts of a loss in autotrophs will most likely impact -

answers-
Producers only
All of the above
Carnivores only
Herbivores only

Answers

All of the above would be the answer I think!

How does thermohaline circulation circulate water and as a result, connect all the world's ocean in one global system.

Answers

Brudder bought a coconut, he bought it for a dime

His sister had anudder one, she paid it for de lime

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she drank 'em bot' up

She put de lime in de coconut, she called de doctor, woke 'im up

And said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

Now, lemme get this straight

You put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you drank 'em bot' up

Put de lime in de coconut, you called your doctor, woke 'im up"

Said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache?"

You put de lime in de coconut, you drink 'em bot' togedder

Put de lime in de coconut, then you feel better

Put de lime in de coconut, drink 'em bot' up

Put de lime in de coconut and call me in the morning

Whoo-ooh-ooh, ooh-ooh-oooh, ooh-ooh, ooh-ooh-ooh-ooh

Whoo-ooh-ooh, ooh-ooh-oooh, ooh-ooh-ooh, ooh-ooh-oooh

Whoo-ooh-ooh, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo, a-hoo

Brudder bought a coconut, he bought it for a dime

His sister had anudder one, she paid it for de lime

She put de lime in de coconut, she drank 'em bot' up

And put de lime in de coconut, she called de doctor, woke 'im up

Said "Doctor, ain't there nothin' I can take?"

I said "Doctor, to relieve this bellyache"

I said "Doctor, ain't there nothin' I can take?"

I said "Doctor, now lemme get this straight"

You put de lime in the coconut, you drink 'em bot' up

Put de lime in the coconut, you drink 'em bot' up

Put a lime in the coconut, you drink 'em bot' up

Put de lime in the coconut, you're such a silly woman

Put a lime in the coconut and drink 'em bot' togedder

Put de lime in the coconut, then you feel better

Put de lime in the coconut, drink 'em bot' down

Put de lime in your coconut, and call me in the morning"

Whoo-hoo, ain't there nothin' you can take?

I say "Whoo-hoo-ooh to relieve your bellyache?"

You say "Well whoo-hoo-ooh, ain't there nothin' I can take?"

I say "Whoo-hoo-ooh, to relieve your bellyache?"

You say "Yaa-ahh, ain't there nothin' I can take?"

I say "Yaa-ahh, to relieve this bellyache?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, ain't there nothing I can take?"

I said "Doctor, you're such a silly woman"

Put de lime in the coconut and drink 'em bot' togedder

Put de lime in the coconut, and you feel better

Put de lime in the coconut, drink 'em bot' up

Put de lime in the coconut and call me in the morning

Yes, you call me in the morning

You call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

If you call me in the morning, I'll tell you what to do

Well, if you call me in the morning, I'll tell you what to do

Other Questions
PLSS HELP ASAP!! Ava writes each letter of the alphabet on separate notecards and puts the cards in a hat. How many timeswould you expect Ava to pick a letter from her name if she picks a card 50 times, returning the card to the hateach time?A about 2 timesB about 4 timesC about 13 timesD about 26 times what battle was the turning point of the war in pacific Physical Fitness and Lifestyle eResources Active Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Online Content: Site 1 Online Content: Site 2 Explain what the core muscles do and why it's important to have a strong set of core muscles. ] i have 8 boxes of chocolate i eat 3 chocolates from each box i now have 72 chocolates in total What is one way to eliminate the possibility of these choices and their negative consequences? choose the correct answers !!!!!!!!!! Will mark Brianliest !!!!!!!!!! Please helppp !!!!!!!!!!!!!!!! Which is a positively skewed distribution?WILL MARK BRAINLIEST!!!! HELP ME I WILL GIVE BRAINLYEST!!Which of the following methods of soil conservation uses the roots of plants as anchors in the soil? (5points)Group of answer choicesAdding fertilizers to soilPlanting trees on sloped surfacesAdding beneficial organisms to soilWatering grasses to add moisture Only Cobra Kai fans know the answerQ:Who did hawk mess with at the arcade?A:ChrisB:MiguelC:Demitri A puppy weighing 3 kilograms races through the dog park. If she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy? Use the kinetic energy equation.[tex]KE=\frac{1}{2} mv^{2}[/tex]A. Her kinetic energy decreases to 1.5 J.B. Her kinetic energy increases to 1.5 J.C. Her kinetic energy remains unchanged.D. Her kinetic energy decreases to 1 J. name the property of: 3x + 2=2 + 3x write an exponential function to describe the given sequence of numbers 2, 4, 8, 16, 32the correct answer is HIGHLY appreciated, ill give brainliest if its *correct* 15 is 125% of what number Please help me with these questions ..... sorry if its a lil blurry Janice is drawing a rough sketch of the crime scene. In which direction should the top of the page point? Janice should ensure that the top of the page points Sammy and Jean are packing bags of candies for a party. They have 152 candies and want to put 12 candies in each bag. Write a fraction to show how many bags can they fill. PLEASE HELP!!! also it is NOT the first 2 sentences like others say. Revise the passage below to remove the two shifts in verb mood. Your revised passage should use only imperative mood. (look at the picture for the passage btw) There are 2 questions on this assignment that i really need help with1:If the total length of all the meteors were distributed equally between each meteor, how long would each one be?A) 1 1/36 inchesB) 1 1/38 inchesC) 1 1/40 inchesD) 1 1/42 inches2: A line plot with the lengths of meteors is shown. Two more identical meteor measurements were added so that the total length of all meteors measured is 16 inches. What is the length of each new meteor?A) 1 inchB) 1 1/8 inchesC) 1 2/8 inchesD) 1 3/8 inches if answered correctly i will give brainlest Who won the first crusade