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raketka [301]
3 years ago
9

What vitamin does the skin play a role in manufacture?

Biology
1 answer:
tatuchka [14]3 years ago
7 0
The skin plays a role in the production of vitamin D because when dehydrocholesterol reaches the skin by means of the blood and is exposed to ultraviolet light from the sun, it changes to vitamin D in an inactive form.

hope this helps!

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At the very end of a small or medium sized stars life cycle, after it has become a red giant what happens to the star?
tino4ka555 [31]

A. It becomes a supernova.

7 0
3 years ago
Why should/shouldn't Pluto be reclassified as a planet?​
Scorpion4ik [409]

Answer:

(This could be opinion based, but ok.)

Explanation:

should:Pluto was known as a planet for 75 years. This means that most people already knew it as a planet, and would be extremely confused. All of the books about planets would be inaccurate and changed. Not all people can access brand new books, leading to inaccurate information.

shouldn't: The same reason that it was unclassified as a planet. It does not adhere to all of the rules of being a planet. It is not completely round and does not have a round orbit around the sun. Pluto does not have every requirement to be a real planet, and therefor, it would be incorrect to have it classified wrongly.

8 0
3 years ago
Two pink-flowering plants are crossed. The offspring percentages are 25% red, 25% white and 50% pink. What would the parent's ge
topjm [15]

Answer:

The options are

A. both homzygous dominant

B. both homzygous recessive

C. both heterozygous

D. one homzygous dominant, one homzygous recessive

The answer is C. both heterozygous

Since it’s in the ratio of 1:2:1 the genotype will be Rr and Rr.

4 0
3 years ago
A single celled salt water protozoan is transferred to a a freshwater lake. What might happen to the protozoan
hichkok12 [17]
<h2>Answer</h2>

A single celled salt water protozoan is transferred to a a freshwater lake. What might happen to the protozoan

  • it would gain water from the hypertonic solution. It it can't get rid of the pressure, it will burst.

<h3>#CarryOnLearning</h3>

\sf\green{— \ WatanabeHaruto⚘}

4 0
2 years ago
Which of the following is false?
kumpel [21]

Answer:

Answer is D.

Explanation:

The first cleavage division can be explained or described as the series of first cellular division of the zygote after fertilization.

In this case, the process of recoiling of the shell of the snail can not be categorized as one of the examples at this stage.

7 0
3 years ago
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