Simplify by removing factor of 1 2z-10/2z+10

Step-by-step explanation:

Factorise the numerator and denominator

12z - 10 = 2(6z - 5) ← common factor of 2

2z + 10 = 2(z + 5) ← common factor of 2

Thus the fraction becomes

← cancel the 2 on numerator/ denominator

=

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.