Suppose it is 40 inside your fridge and 340 inside your oven when the power goes out the fridge temperature starts rising at the rate of 5 per hour the oven temperature startes dropping at the rate of 45 per hour

the solution is h=10 because you add 9 to each side of the equation.

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.