The number line shows how Isa's bank balance decreased after writing several checks. −
150
−150
−
100
−100
−
50
−50
0
0
50
50
100
100
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150
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$
47.90
−$47.90
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$
13.90
−$13.90
$
38.10
$38.10
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$
133.90
−$133.90
Which

Step-by-step explanation:

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sry yea

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

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.