Evaluate 2x4y for x = 2 and y=4.

64

Step-by-step explanation:

2x × 4y

x=2 and y=4

Put x as 2, and y as 4.

2(2) × 4(4)

4 × 16

= 64

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.  

a

step-by-step explanation: