3)(-3)+(+5) 4) (-3)+(-5) 5)(-13)+(+8) 6) (+12) +(-9) 7)(-14)+(+14) 8)(-9)+(-13) 9)(+49)+(-37) 10) (-72)-(+34) 11) (+m) +(-m) 12)(-83)+(

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.  

i need points

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sorry bubs

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