What was known before franklin and wilkins conducted their studies of DNA?

A. DNA is found in the nucleus of a cell

C. Organisms store and transmit genetic information

E. Cells contain protein molecules.

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.

the correct answer is:

a population changes in response to a change in the environment.