Question

an ecologist may study multiple choice the human impact on the earths environment. the different types of organisms living near a hydrothermal vent and how they interact. the effect of a particular pesticide on a food chain. how populations are restricted by environmental resistance. all of the choices are correct.

Explanation:

Ecology is the study of the relationships between organisms and their environment. Studying human - impact on the environment, population - environment interactions, pesticide effects on food - chains, and organism interactions near hydrothermal vents all fall within the scope of ecology.

Answer:

All of the choices are correct.