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mihalych1998 [28]
3 years ago
7

The _____ model of speciation involves a genetic isolation between populations sharing a common geographic area.

Biology
1 answer:
jolli1 [7]3 years ago
8 0
<span>The answer is sympatric speciation. This is differentiated from allopatric speciation that involves the divergence of a species due to the separation of parts of the population by a geographical feature (such as a valley of the mountain). In sympatric speciation, the divergence may be due to behavioral and reproductive isolation within the population</span>




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What term describes an educated guess about what the answers to a question might be
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A hypothesis is an educated guess. This is part of the scientific method developed in science to explain natural phenomena in the environment. Usually scientists use the hypothesis in their controlled experiments. 

Whether it is a fact or not scientists use the hypothesis as a basis or a starting point for further explanations. This is known as the scientific hypothesis. When an educated guess yields the same results over time, the answer is called a theory. Something that is widely accepted but still needs to be proven and investigated further.  
5 0
3 years ago
If a DNA molecule has 24% adenine, what is the percentage of guanine in the same DNA molecule?
artcher [175]

Answer:

26%

Explanation:

Adenine pairs with thymine.

Guanine pairs with cytosine.

If 24% of the DNA molecule is adenine, that means that there is 24% thymine. This is because they pair together so they have to be equal. That is 48% of the DNA molecule. To find the percentage of guanine, we need to minus 48% from the total 100%.

100 - 48 = 52

Then divide by 2 because you have guanine AND cytosine.

52/2 = 26

Therefore, your final answer is 26% of guanine is in the DNA molecule.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

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