Oscar is designing a page for the school yearbook on a square grid. The page is composed of square and rectangular photos. The small square photos have side length x. The large square photo has side length y. Determine whether each statement is true. Select True or False for each statement. ​

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.  

actually what is a question i don't understand