Neurons are categorized by the A
direction in which they carry impulses.

B
amount of metabolic activity that takes place.

C
number of dendrites that branch out.

D
number of impulses that they carry.

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

What problem would a person most likely have if her kidney did not work correctly?