Harley and dakota have dated for close to three years and have been exclusive for almost six months. harley is sure dakota is "the one" and is about to propose, when dakota states that she wants to break up. which reaction might harley experience that appears to be rooted in biology?

Feeling numb

Explanation:

Harley might feel numb after Dakota rejects his proposal and breaks up. The feeling of numbness will arise in Harley as a defence mechanism against pain. In psychological studies, many people have been seen to be emotionally numb after they experience an emotional pain like betrayal or rejection. They numb their feelings so that in the future they avoid such kind of pain again. Hence, numbness is a kind of defence mechanism against emotional pain.

the answer is trees if i'm not mistaken

the fossil record provides evidence of a common ancestor to many species.