What does predominant mean in biology?

Name the part of the the brain labeled "e".

How does the nervous system affect the excretory system?

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.