21 and 22 help please URGENT

∠ABC=58 degrees

∠LMN=108 degrees

Step-by-step explanation:

angle ABC=∠DBC+∠ABD

∠ABC=37+21=58 degrees

∠LMN= 85+23

∠LMN=108

is there any photos or whatever?

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.