The farina family spent a week at the state park. Christine hiked the evergreen trail twice and the yellow river trail once. Brian hike each of the longest trails once. How many more miles did brian hike than chirstine

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.  

111

step-by-step explanation:

the correct answer is 1.7