Name the respiratory structure named by fish

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

In which part of the body is a ball-and-socket joint found?

Look at the inheritance patterns. what do you notice? can a single offspring inherit both chromosomes from one parent?