Question

an introduced species can be a __________ if the relationship creates a reason for change in a population
trophic level
overcrowding
limiting factor
immigration

Explanation:

An introduced species can impact a population's size, distribution, or behavior. A limiting factor restricts the growth, abundance, or distribution of a population within an ecosystem. When an introduced species causes changes in a population, it acts as a limiting factor. Trophic level refers to an organism's position in a food - chain. Overcrowding is about high population density within a given area. Immigration is the movement of individuals into a population.

Answer:

C. Limiting Factor