Pls need asap
first will be awarded
find the value of x in each case.

1. Use the exterior angle theorem that states that an exterior angle in a triangle is equal to its two remote interior angles.

x+46=84

x=38 degrees

2. There are two parallel lines cut by transversal. We can see a same side interior relationship.

3x-5+90+2x=180

5x=95

x=19 degrees

3. Use exterior angle theorem again.

90+34=x+72

x=52 degrees

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.