Answer:
i have put an image for a diagram of the heart in the answers becuase you did not provide a diagram so i hope this helps
Explanation:
"If blood temperature rises too high<span>, this is sensed by specialized neurons in the hypothalamus of the brain. ... As these blood vessels dilate, more blood flows close to the </span>body<span> surface and excess heat radiates from the </span>body<span>."</span>
The definition is the study of life
The answer might be b....I’m probably wrong but I tried