Author Question: In most cases the most important cause of extinction is a. sterilization. b. urbanization. c. ... (Read 18 times)

bclement10 · **on:** Jul 10, 2018

In most cases the most important cause of extinction is

a. sterilization.
b. urbanization.
c. consumerism.
d. habitat reduction.
e. habitat expansion.

Question 2

For at least the past 15,000 years, human activities such as hunting and clearing land for cultivation, have taken their toll on

a. human species.
b. nonhuman species.
c. nonhuman primates.
d. mammals.
e. alien species.