Two bags each contain blue marbles and black marbles. the first contains 4 blue marbles and 6 black marbles and the second bag contains 6 blue marbles and 6 black marbles. a marble is randomly drawn from each bag. what is the probability that both marbles are blue? . a. 1/5. b. 1/12. c. 3/10. d. 1/10

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

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