Question

PLEASE HELP ASAP

When environmental conditions change, selection can cause a change in the distribution of phenotypes of that species. Which of the following trends would provide evidence of disruptive selection in response to environmental change?

A shift in a population's frequency curve from an intermediate phenotype to an extreme phenotype
A shift toward equal distribution of all phenotype frequencies, including intermediate and extreme phenotypes
An increase in the frequency of extreme phenotypes and a decrease in the frequency of intermediate phenotypes
An increase in the frequency of intermediate phenotypes and a decrease in the frequency of extreme phenotypes

Answer 1

One of the extreme phenotypes has the highest fitness. The bell curve shifts towards the more fit phenotype.

so I think w ould say the second one

Step-by-step explanation:

Answer 2

An increase in the frequency of extreme phenotypes and a decrease in the frequency of intermediate phenotypes

Step-by-step explanation:

A disruptive selection is one where the extreme phenotype frequencies are increased and the intermediate phenotype frequencies are decreased.

**(Also I just took the test and this was the answer)