This statement is true.
When a hormone binds to a hormone receptor it activates cell enzymes that start a cell cascade. This means that this enzyme makes changes in the activity other proteins or alters the expression of specific genes that change the cells activity.
A, B, and C are all false, infact, they're all the opposite of the truth. So, therefore, D. is correct because, natural gas is stored underground.
Answer:
A
Explanation:
DNA polymerase is responsible for adding to the bases of the structure.
Answer: Effector cytotoxic T cells
Explanation:
Cells infected with a virus or another internal cellular infection are immediately killed by effector cytotoxic T cells.