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Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Long term exposure to waves can cause sunburns and skin cancer.

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