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Musya8 [376]
3 years ago
7

When land inhabited by an organism is destroyed or altered, ______________ occurs?

Biology
1 answer:
alexgriva [62]3 years ago
3 0

The answer is Extinction. Destruction of a species habitat causes the reduction in the numbers of a population to a point where the reproductive rates are so low to sustain the population. Extinction may indicate the death of the last member of a population. A renowned example of an extinction event is that of dinosaurs whose habitat was destroyed by a meteorite strike.


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The environment has changed and the frequency of the p allele has gone down, what will this do to the q allele? Cause it also to
atroni [7]
The answer is <span>The q allele will go up.

Let's assume that the population is in the Hardy-Weinberg equilibrium and there are only two alleles of some gene. </span>The Hardy-Weinberg principle can be expressed as p + q = 1 where p is the frequency of the p allele and q the frequency of q allele.
Let initial frequencies be:
p = 0.6
q = 0.4
p + q = 1
0.6 + 0.4 = 1
Now, after the environmental change, the frequency of the p allele has gone down, for example p = 0.3
So, p goes from 0.6 to 0.3.

The frequency of the q allele can be calculate using Hardy-Weinberg principle:
p + q = 1
q = 1 - p
q = 1 - 0.3
q = 0.7

Thus, q goes from 0.4 to 0.7.
7 0
3 years ago
Read 2 more answers
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