For males in a certain town, the systolic blood pressure is normally distributed with a mean of 130 and a standard deviation of 9. using the empirical rule, determine the interval of systolic blood pressures that represent the middle 68% of males.

1,170

Step-by-step explanation:

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: