Which number sentence is true? a.|-8| < 8 b.|-15| < 15 c.|-8| < |-15|
d.|8| > |-15|

C.|-8| < |-15|

Step-by-step explanation:

Note that when a number x is inside |x|, it means that x will always be positive. This means that:

|-8| = 8 ; |-15| = 15

8 < 15.

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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: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.