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Zinaida [17]
3 years ago
9

What do X and Y chromosomes affect? A. The shape of a person's thumb. B. How many parents a person has. C. Whether someone is a

female or male. D. Whether earlobes are attached.
Biology
2 answers:
MAVERICK [17]3 years ago
5 0

Answer:

whether someone is a female or male

Explanation:

Mariana [72]3 years ago
3 0
c........Whether someone is a female or male
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Which of the following is not part of cell theory? A; cells are basic unit of life B; all cells come from other cells C; All thi
vitfil [10]

Answer:

C. All things are made up of multiple cells

Explanation:

I would say  because some things only have one cell and not multiple.

hope this helps!!!

but if there is  a option D that is

D. All cells must be able to make their own food.

then it is D

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3 years ago
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What is a benefit of using bioenergy over nuclear energy?
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Answer:

O Bioenergy does not release harmful greenhouse gasses.

Explanation:

Nuclear energy might not releases as much greenhouse gasses as fossil fuels do but it still releases some. Bioenergy produces energy by using 100% natural elements whereas nuclear energy does not.

6 0
2 years ago
consist of either one or two long chains of repeating units called nucleotides. DNA and RNA are the two main types.
elena-14-01-66 [18.8K]

Answer:

In case of both DNA and RNA, in general it is the nucleotides.

Nucleotides basically consists of three parts. The sugar(deoxyribose in DNA and ribose in RNA, both of which are pentose sugars), nitrogenous base and a phosphoric acid group.

The only component that varies in the nitrogenous base. There are five different types.

1.Adenine(A)

2.Guanine(G)

3.Cytosine(C)

4.Thymine(T)

5.Uracil(U)

1 and 2 are known as purines.

3, 4 and 5 are known as pyrimidines.

In DNA, A base pairs with T by means of a double hydrogen bond and G pairs with C by means of a triple hydrogen bond.

In RNA, A base pairs with U by means of a double hydrogen bond and G pairs with C by means of a triple hydrogen bond.

8 0
3 years ago
3. Did the moths change color over this time period?
AURORKA [14]
I believe that I know what you are talking about however a better layout or source would be nice.
3:I’m sorry I’m not really sure how to answer this one but I’m going to assume that you mean from dark to light. So they liked this time period because the trees were darker due to pollution, this made the darker moths survive from predators while the lighter color moths would be eaten, over time, natural selection would do its course and the whole population of moths would be dark.
4:Well I kind of already answered this but the majority of them were dark because the lighter ones would not be camouflaged therefore making them be easier target for predators and makes the darker moths breed out the lighter ones.
5:Well giraffes cannot live without food so the giraffes with shorter necks would slowly die off making it so only the long necked one would be able to reproduce with babies which would also have long necks, over a long course of time, the shorter necks would be completely gone.
6:Well I wouldn’t say they “grow” longer necks. It’s more like genetic mutation made it so random giraffes would get longer necks then others, since giraffes live in an environment where they have to have long necks only the giraffes with that genetic mutation would survive, and as a said, the longer neck giraffes could only breed with the other Long necked giraffes cause those are the only ones that could survive.
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3 years ago
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What is the purpose of the bill of rights
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I'm pretty sure that the main purpose of the U.S. Bill of Rights is to define the civil liberties of American citizens. It refers to the first 10 amendments of the U.S. Constitution. Also, it was introduced in 1789 to guarantee the protection of the basic rights that citizens continue to enjoy.
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4 years ago
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