Answer:
C
Explanation:
Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.
Answer:
the Echinoderms.
Explanation:
Examples of echinoderms: starfish, sea urchin, feather stars and sea cucumbers.
The correct answer to this is the butterfly. hope this helps :)