The process in which an animal’s cells use oxygen and digested food molecules to release the energy in food is called
a. breathing
b. cellular respiration
c. diffusion
d. gas exchange

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Explain how the political influence of african americans leaders became weaker.

Which measure of an earthquake depends on how close you are to the focus?