You have 120 feet of fencing for a garden. The fencing is sold in 5-foot sections. What is the area of the largest garden you can build?

A square typically has the larger area than a rectangle of similar size.

120 / 4 sides = 30 feet per side

30 x 30 = 900 square feet

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.