The correct answer choice would be D) an area with limestone deposits
I'm pretty sure that each level decreases the amount of energy by a factor of 1/10 so for primary consumers there would be 100 units of energy.
Answer:
Hormones activate target cells by diffusing through the plasma membrane of the target cells. Hormones circulate throughout the body via the blood, contacting just about all cells. The "target" cells for a particular hormone have receptors, either on the cell membrane
Explanation: