Its when one species marries another species
Warm fronts
Not cold fronts because those move to warm
A.......................................................
The answer is B. artificial selection. Artificial selection is . a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only forms that have certain desirable inheritable characteristics (such as, in this case, cows that produce the most milk).
<span>I believe you are looking for the term, Dichotomous Keying.</span>