Checkpoints occur between the stages of the cell cycle. if a cell does not meet certain criteria at the end of a stage, it will not move to the next stage. which of these occurs just before the cell enters the g2 stage of the cell cycle.

f / the nuclear membrane disintegrates.
g / dna replicates.
h / centrioles form.
j / the nucleolus divides.

Hurry i need your (100 points) 1) what are the responsibilities of the region of the brain highlighted below? (picture located below) the highlighted portion is at the rear base of the brain, behind the brain stem. regulating homeostasis, hunger and eating, thirst and drinking, and many other functions of basic survival. coordinating movement and balance by using information from sensory nerves, including hand-eye coordination. controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities. regulating important involuntary bodily functions such as blood pressure, heart rate, breathing, and swallowing. 2)which of the following systems or structures is correctly paired with its function? neurons - brain cells that control thoughts, calculations, and memory cerebral cortex - portion of the brain that controls involuntary body movement peripheral nervous system - carries impulses to and from the central nervous system central nervous system - carries information from the nerves to the muscles and glands

Witch theory suggests all living things are made up of cell or cells

Crossing over is a method of (blank)?