The goal of is to use cells and tissues to treat human illnesses or injuries. a. reproductive cloning b. gene therapy c. clone therapy d. therapeutic cloning

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

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