Which of the following describes the main role of the electron transport chain in cellular respiration?
A. It produces molecules of ATP.
B. It produces the energy carriers.
C. It breaks down glucose molecules.
D. It pumps hydrogen ions inside the cell.

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

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Specific heat is the amount of heat required to raise the temperature of a material by 1°c per what unit? a. volumeb. joulec. massd. pressuree. density