A man with B blood marries a woman with type AB blood. The man's mother had type O blood. What is the probability that their child will have type A blood? * 10 points
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Astudy was performed on 20 trees to test the effectiveness of a new fertilizer. the results of this specific study is brought into question. what would possibly improve the reliability of the results?

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

How do you date a sample of rock that you suspect as being one of the earliest on earth