A boat sails from point X to point Y and then to point Z. Y is on a bearing of 280° from X. Z is on a bearing of 220° from Y. The distance from X to Y is 3.5 km. The distance from Y to Z is 6 km. Work out the bearing of Z from X. Give your answer correct to 1 decimal place.

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.  

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: