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JulsSmile [24]
3 years ago
12

What is the atomic mass of an atom with 20 electrons

Biology
1 answer:
BlackZzzverrR [31]3 years ago
5 0
I believe it’s 40.078 atomic mass
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Why is heritable variation important for both artificial and natural selection.
Julli [10]

Answer:

Heritability is important for natural and artificial selection because a trait must be heritable for them to take place. ... Variations that exist in every population are the basis for natural selection. The differences in organisms come from different genetic material.

Explanation:

7 0
2 years ago
At which boundary may a mountain chain of sedimentary rock form?
Pavel [41]

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A mountain chain of sedimentary rock may form as a result of a convergent boundary of two continental crusts

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8 0
3 years ago
You cross purple-flowered and white-flowered pea plants, and all offspring are purple. how come? select one:
Vaselesa [24]
To solve this problem on genetic dominance, we will need a punnet square.

Let's let P represent purple-flowered and p represent white-flowered.

We have one purple flowered plant with the alleles PP, and we have one white flowered plant with the alleles pp. Using a punnet square, we can determine the alleles of the offspring.

       <u>P</u>     <u>P</u>
p|    Pp   Pp

p |   Pp   Pp

As we can tell from our punnet square, all of our offspring will have purple flowers. This is because the purple-flower allele is dominant and the white-flowered allele is recessive.

Since each flower has a dominant and recessive allele, they are heterozygous.

Therefore, the solution to this problem is D.
3 0
3 years ago
which relationship between two species listed would be mutually beneficial A) a fish and a leech B) a dog and a tick C) a flower
melisa1 [442]
I think that the answer is C. :)
6 0
3 years ago
Would it be possible for something to initially be regarded as pseudoscience and then later be supported by science?
s2008m [1.1K]

<span>Pseudoscience contain of concepts that also do not have evidence to support them or are directly opposed by evidence that occurs. Science consists of concepts that are supported by an evidence. The only variance among the two is evidence because that is the only thing that science contracts with. Pseudoscience can become science just by determining evidence to support it. People are actually good at supposing out how to do experiments to make available the evidence so that there will be an assurance that the pseudoscience that still remains will remain as it is. </span>

4 0
3 years ago
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