How might more species diversity within a community make it more stable, even if it lacks genetic variation? Consider species interactions and the flow of matter and energy in your answer.

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

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.

How does the human body lever work?