There are two checkpoints during the cell cycle that regulate cell division. they are right before the phase and phase. a) s; m b)g1; g2 c)s; g1 d)m; g2

Hihi!

The two checkpoints during the cell cycle that regulate cell division are right before S phase and M phase! Cell cycle checkpoints are control mechanisms necessary for proper cell division. In the cell cycle, there are two checkpoints: the G1 checkpoint and the G2 checkpoint. The G1 checkpoint is right before the S phase, and G2 checkpoint is right before the M phase. If something is wrong at the G1 checkpoint, the cell will not enter the cell cycle! It is important to be delayed before cell enters S phase where DNA replication commences.The G2 checkpoint is a DNA damage checkpoint and if DNA is damaged, entering the cell cycle is delayed before mitosis (M phase). If you need anything else please ask!

I hope I helped!
-Jailbaitasmr

The answer is a: the eggs have half as many chromosomes as the body cells

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.