What is the purpose of the chemical messengers that pass between cells? Check ALL that apply. a To keep the rate of cell division equal with the rate of cell death.

b To help cells reproduce at a rapid rate.

c To inhibit cell death so that fewer new cells are needed.

d To help regulate the rate and timing of cell division.

B and D seem most credible although I am not 100%

Hope this helped.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

"d.) carbon dioxide and hydrogen sulfide"