Allows certain substances into cell but not all a
semi-permeable
b
exocytosis
c
endocytosis

Contrast how pollination is different among gymnosperms and angiosperms.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

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