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Bat sign= 5

Skull sign= 4

Cat looking sign= 2

Step-by-step explanation:

5×5+5= (5×5)+5= 25+5= 30

5×4-4= (5×4)-4= 20-4= 16

4-2= 2

5+4+2= 11

Hope this helps! :)

?=11

Step-by-step explanation:

bat + skull + cat = 11

bat=5

skull=4

cat=2

3x^3-x^2+6x-9

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.