If the volume of an object increases but the mass stays the same, which will happen to the density? a. it will increase. b. it will decrease. c. it will stay the same.

How does natural selection change thephenotypes within a population over time?

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?