Which best explains how the body maintains homeostais?
A. All systems work together to match the external environment
B. All systems work together to stabilize the body
C. Each system works interdependently to stabilize the body
D. Each system works interdependently to match the external environment

I believe the answer is A. All systems work together to match the external environment.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

then that particular organisms become extinct.