When you exercise you generate excess heat and your body temperature rises. blood vessels dilate in the skin, warm blood flows closer to the body surface, and you lose heat. this is an example of?

The  correct answer is negative feedback.

Explanation:

Negative feedback is considered the mechanism that frequently regulates biological reactions in the body. Negative feedback helps reduce the stimulation of some processes, such as controlling the temperature.

It can be seen that negative feedback works by redirecting some processes that go to one point directs a degree of that process to a different location.

In this case, on the temperature, the feedback is responsible for putting the system to work from the moment it starts to sweat using the different processes to regulate the temperature. This process uses help from enzymes and body pathways.

I hope this information can help you.

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.