Answer:Evolution and diversity result from the interactions between organisms and their environments and the consequences of these interactions over long periods of time. Organisms continually adapt to their environments, and the diversity of environments that exists promotes a diversity of organisms adapted to them.
Explanation:
The Nervous System and The Endocrine System.
Th answer is D its the best answer that fits the question .
"Metabolic Pathway" is what I believe the answer is.
