I believe it's B. Apologies if I'm wrong.
I'm sure it's Quarts, the answer would be D
The range of temperatures in which an insect is able to live and reproduce is one element of that organism's niche, a description of its ecological requirements.
Answer: That Answer Was Copied And Pasted Off Of Wikipedia.
Explanation: https://en.wikipedia.org/wiki/Evolution_of_the_horse
