What is the interval notation for the compound inequality? x≤−4 or x≥5

[-4,5]

Same as -4>=x>=5

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:

circumference divided by 3.141592654 then timesthe radius twice