Answer:D. A change to one amino acid in a protein may cause a significant change in phenotype.
The reason is that something changed that caused them to be unsuccessful in their environment.
Sorry if it is not right.
Answer:
amoeba !
it should be if ur in grade 9
Explanation:
Answer:
Abscisic acid.
Explanation:
Also written as ABA.
Act as Growth inhibitor.
Sorry if I write wrong spelling of abscisic acid. (But I think it's right)