Which is an advantage of multicellular organisms? (select all that apply.) a) their cells can come together to form larger organisms. b) their cells can coordinate to perform different activities. c) they have specialized levels of organization, such as tissues, that carry out specific functions. d) their individual cells can function on their own if separated from the organism.

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