The answer would be adaption or evolution in the animal kingdom
In both you are unable to breathe.
Answer:
i'd recommend rereading it
Explanation:
C)old or young
A dichotomous key is a tool or a used assessment that is utilized by most scientists like biologist and ecologist to organize and classify organisms into sets of classifiable structures like trees, animals, birds, cats, dogs. These are broad descriptions that systematizes a whole family of species into a set category or a whole kingdom in a simple language such as plants or animals.