LO 7.3 2. The most usable form of
vitamin A in your body is
a. retinol.
b. retinal.
c. retinoic acid.
d. retinoids.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast