7) a bag of candy that contains 30 pieces sells for $4,20.
another bag with 24 pieces sells for $3,60. which bag is the
better deal?

30 pieces for $4.20 is a better deal

Step-by-step explanation:

4.20/30=0.14 per piece

3.60/24=0.15 per piece

the bag for $420 because you are paying 14 cents per piece of candy instead of 15 per piece

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.