Uses energy to pump H+ across a membrane; energy is moved through a chain of proteins.

Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the  pharynx, the  larynx, enters the  trachea, moves through the  bronchi  andbronchioles  till the alveoli.

Idon’t know i’m just trying to get points to make me look smawt

Sorry  i don't understand can you rephrase that