6. The model of states that evolution is a slow ongoing process, while the model of states that evolution is rapid and results in new species in a short amount of time. A. evolution; natural selection C. punctuated equilibrium; gradualism B. natural selection; evolution D. gradualism; punctuated equilibrium​

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.

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources

What characteristic makes a cell membrane selectively permeable