Plz free points and brainleist how can the direction part of a vector be expressed as a number

add an equation to the magnitude

Step-by-step explanation:

apply a given equation to find the magnitude

with magnitude

Step-by-step explanation:

write as equation to find magnitude

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.