Please help me I will give you the brain thing and extra points, image below.

In order to clone adult animals, scientists typically begin with a(n)

Why is excretion necessary to maintain homeostasis?

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.