Triangle JKL has vertices at the following coordinates: J(2, 2), K(-1, 3), and L(-2, -1). Determine whether or not triangle JKL is a right triangle.

It is a right triangle

Step-by-step explanation:

Area of triangle JKL = 1/2 X (-1-(-2)) X (3 - 2)

   =1/2 X 1 X 1 = 0.5 sq unit

(Please see the attached below)

2

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.