Question

homeostasis
how does the body maintain homeostasis?
a very hot, sunny day and your body starts to overheat. what will your body do to maintain homeostasis?
a cold, winter day and your body is freezing. what will your body do to maintain homeostasis?
your blood sugar is high, what will your body do to maintain homeostasis?
contractile vacuole
contractile vacuoles are found in protists that live in water bodies. when the protist absorbs too much water from its surroundings, the contractile vacuole will pump the excess water out so the protist doesn’t burst.
this is an example of ______________

Explanation:

1. When over - heating on a hot day, the body sweats. Sweating is a cooling mechanism as the evaporation of sweat from the skin surface takes heat away from the body, helping to lower body temperature and maintain homeostasis.
2. On a cold winter day when the body is freezing, blood vessels in the skin constrict (vasoconstriction) to reduce heat loss. The body may also shiver, which is involuntary muscle contraction that generates heat to warm the body and maintain a stable internal temperature.
3. When blood sugar is high, the pancreas secretes insulin. Insulin helps cells take in glucose from the blood, storing it as glycogen in the liver and muscles, thus reducing blood - sugar levels and maintaining homeostasis.
4. The contractile vacuole in protists pumping out excess water is an example of osmoregulation, which is a form of homeostasis that involves maintaining the proper balance of water and solutes within the cell.

Answer:

1. The body sweats to cool down.
2. Blood vessels constrict and the body shivers.
3. The pancreas secretes insulin to lower blood - sugar levels.
4. Osmoregulation (a form of homeostasis)