Regardless of race all human beings have about the same number of melanocytes. a. true b. false

What is the first step in a life cycle of a plant reproduce sexually

Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above