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Nataliya [291]
3 years ago
10

What happens when you mix lead and mercury?​

Biology
1 answer:
Rainbow [258]3 years ago
4 0

u get a mechanical pencil

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In the nucleus, __________ tell cells what to do and how to change.
AfilCa [17]

Answer:

The nucleus regulates the synthesis of proteins in the cytoplasm through the use of messenger RNA (mRNA). Messenger RNA is a transcribed DNA segment that serves as a template for protein production. It is produced in the nucleus and travels to the cytoplasm through the nuclear pores of the nuclear envelope, which you'll read about below. Once in the cytoplasm, ribosomes and another RNA molecule called transfer RNA work together to translate mRNA in order to produce proteins.

7 0
3 years ago
Human height tends to follow a normal distribution. For example, 80 percent of men are somewhere between 5 feet 4 inches tall an
marishachu [46]
Its A) artificial selection. <span />
4 0
4 years ago
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Apple maggots are a type of fly native to North America. Prior to the introduction of the apple tree to North America, apple mag
scoundrel [369]

Answer:

B

Explanation:

B is the most likely consequence because of the following facts we are told:

  • After apple trees were introduced, some apple maggots began feeding from and laying their eggs on apple trees
  • Adult apple maggots will only mate on the type of tree on which they were born.

This provides a geographical isolation (because they are feeding and laying eggs on separate trees) and reproductive isolation (because they will only mate on the type of tree on which they are born).

These two factors increase the chances that apple maggots feeding on apple trees will only encounter those who have mated on the same tree, and continue to mate this way. Over time, the populations (i.e. apple tree vs hawthorn tree) will intermix less and less. This will mean the genetic pool will become distinct, and natural selection will be acting differently (different habitats and different genes), encouraging speciation.

7 0
3 years ago
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In a hardy-weinberg population with two alleles, a and a, that are in equilibrium, the frequency of allele a is 0.2. what is the
Allushta [10]
The Hardy-Weinberg equation is as follows:
( {p + q})^{2}  = 1
{p}^{2}  +2pq +   {q}^{2}  = 1
Where:
(convert all % to decimals)

p= homozygous dominant
q= homozygous recessive
pq= heterozygous

While you did not specify whether the 0.2 frequency was for dominant or recessive, we can still figure out the answer.

Using the 1st equation, we can solve for the other dominant/recessive frequency:

1-0.2=0.8

Meaning that:

p= 0.8 & q=0.2

If the heterozygouz frequency is 2pq, then it becomes a simple "plug & chug" sort of approach.

2(0.8)(0.2)= 2(0.16)= 0.32

So, the heterozygous frequency would be:
0.32

Hope this helps!
8 0
3 years ago
Kinetic energy is the energy of what?
ad-work [718]

Answer:

It’s the energy something holds while or due to the motion

Explanation:

6 0
3 years ago
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