Ken bought 10 postcards during 5 days of vacation. How many days will Ken have to spend on vacation before he will have bought a total of 14 postcards? Assume the relationship is directly proportional.

2 because he buys 2 a day

Step-by-step explanation:

21

step-by-step explanation:

11279

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.