Darius reads 2/10 of his book in 3 days. He says that if he reads the rest of the book at the same speed, it should take him 15 more days to finish the book. Is Darius correct?

Darius is correct

Step-by-step explanation:

Darius reads of his book in 3 days

In 1 day, he reads of the book.

Therefore in 15 days,  He reads

which is the whole of the book.

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.