Which of the following represents a way that animals in a zoo are influenced by their environment?

a. increased natural instincts

b. decreased aggression

c. unnatural behavior

d. increased appetite

A way in which animals in a zoo are influenced by their environment is unnatural behavior. Choice C. It would not be an increase of natural instrincts because after being caged in and being fed on a regular basis their behavior changes to being "domesticated" this also plays a role into appetite since they are kept on a schedule it will not increase.