Cellular respiration refers to:
a. breathing.
b. the diffusion of oxygen into the cells.
c. the transfer of O2 and CO2 across a cell membrane
d. the production of ATP from energy rich compounds

The difference between amphid and plasmid

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his 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