What does adaptive radiation cause?
a. higher extinction rates
b. higher gene flow
c. higher biodiversity
d. higher genetic drift

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is