PLEASE HELP ITS TIMED Water and mountons form barriers that can limit the movement of organism's true or false

*will mark brainliest to the first and correct answer less species diversity results in less a. oxygen b. food c. drinkable water d. all of the above

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Cells destroy body cells infected by a virus or bacteria.