Bruce has $150 and saves $20 each week. katie has $200 and saves $10 each week. after how many weeks will they have the same amount of money? how much money will they have at the time?

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.  

step-by-step explanation:

the shape,the size and the distance