Which of the filling is not part of the body first line of defense against disease

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

If a grape were placed in a hypertonic solution what would happen and why?

Discuss cell surface transport in the structure of constituents