<span>There is a possibility that the population of mice will go way down or even become extinct.</span>
<span>The hormone which is being produced under a water-deficit condition which triggers a drought response is known as Abscisic Acid or ABA.
Abscisic acid is termed as a plant hormone. The main functions in the development of plants include
1. Stomatal closure.
2. Control of organ size.
3. Bud dormancy.
It responds to environmental stresses in plants, which include heat stress, freezing tolerance, cold tolerance, soil salinity, and drought.</span>
Somatic mutation is the type of mutation among the choices given in the question that <span>contribute to evolution. The correct option among all the options that are given in the question is the second option or the penultimate option. I hope that this is the answer that has actually come to your desired help.</span>
