Martha, Alison, and Scott buy 3.8 pounds of clay. Martha used of the clay for a sculpture. Scott used of the the remaining amount of clay to make a mug, and Alison used 1.2 pounds of clay to make a bowl. How many pounds of clay are they left with?

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.  

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