Asalesman has a 20% chance of a sale at his first stop, a 30% chance of a sale at his second stop and a 16% chance of a sale at both stops. find the odds that
(a) he will make a sale at both stops. reduced to lowest terms, odds are
to
.

(b) he will make a sale only at the first stop. reduced to lowest terms, odds are
to
.

(c) he will make a sale at the second stop. reduced to lowest terms, odds are
to
.

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.  

i would think "anyone would want the best for their child" is correct