Answer:
C. circulatory and respiratory
Explanation:
The respiratory system is a system that is directly related to breathing and circulatory system is related to blood flow, which contains oxygen.
A squirrel stores food in a tree hole.
Glycogen is stored in the sarcoplasm region of a muscle fiber.
Positive feedback cycles always increase the response. Negative feedback cycles always decrease the response.
Positive and negative feedback mechanisms always work in antagonistic fashion to maintain a homeostatic balance of a parameter such as temperatures or pH in the body. Positive feedback is akin to a gas pedal while negative feedback is akin to a brake and reverse pedal.
Explanation:
An example of a parameter is blood sugar levels. Glucagon is a hormone responsible for positive feedback since it increases blood sugars when levels are low. Insulin, however, is a negative feedback hormone that reduces blood sugars levels when they are elevated. These two work antagonistically to maintain the right sugar levels in the blood.
Learn More:
For more on feedback loop check out;
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