Question

the sum of all the natural selection pressures to which a population is exposed is referred to as a(n)
constructed niche.
environment.
ecological niche.
evolutionary niche.

Explanation:

An ecological niche encompasses all the natural - selection pressures (including biotic and abiotic factors) that a population experiences in its environment. A constructed niche is related to the modifications organisms make to their environment. The environment is the general surroundings. An evolutionary niche is more focused on the long - term evolutionary aspects. The ecological niche is the sum of all natural selection pressures.

Answer:

C. ecological niche.