Photosynthesis and respiration are processes that occur within cells. The two processes complement each other by providing what the other needs. What is the primary contribution of photosynthesis? Group of answer choices

A. To create energy for plant functions.

B. To release energy for cellular functions.

C. To store energy that is needed for cellular functions.

D. To metabolize energy produced by plant cells.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

The nursing instructor has been observing nursing students initiate an iv infusion. which action(s), if made by the nursing student, indicates that further instruction is needed? (select all that apply.) the nursing student:

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell