What is limited by a cells surface area to volume ratio? a: cell shape b: cell size c: cell surface area d: cell volume

B Cell size

Explanation:

cell size because the bigger the cell gets, the less surface area

B Cell size

Explanation:

Sorting of cells based upon size followed by cell cycle analysis reveals a direct correlation between cell size and cycle phase. Specifically, cells 4.5-5.5 microns in diameter are in primarily G0. Cells 5.5-7.0 microns in diameter are in early G1.

i believe the answer is a or 1

i'd say that the moon rock is about 2.2 billion years old.