The boiling temperature (in degrees Celsius) of platinum is 199 more than four times the boiling temperature $z$ (in degrees Celsius) of zinc. a. Write an expression that represents the boiling temperature (in degrees Celsius) of platinum.

expression:

b. The boiling temperature of zinc is 907 degrees Celsius. What is the boiling temperature of platinum?

The boiling temperature of platinum is

°C.
these are questions not abc answeres

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.  

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is there more info provided? there is not enough information given in the problem