Which of the following is an intracellular factor that affects gene expression?

A.
Chemical signals from other cells

B.
Whether a cell’s DNA is damaged

C.
Nutrient levels

D.
Mechanical signals from the extracellular matrix

B. Whether a cell’s DNA is damaged

Explanation:

If a cells dna is damaged it will affect gene expression

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

the fossil record provides evidence of a common ancestor to many species.