Another name for chewing is a. mastication. b. deglutition. c. prehension. d. chemical digestion.

i'm pretty sure it's a, im just not 100% sure.

good one: produce hormones that plants grow.

bad one: the problem with organic matter is that while plant nutrients are needed for crop growth, they can also stimulate excessive growth of the wrong plants – mainly, algae.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15