No system is closed off by it surroundings.
It happens during the s phase
Answer:
if there is nothing else in there then the beverage will retian its warmth
Explanation:
The hypothalamus.
The hypothalamus links the nervous system with the endocrine system. It's part of the limbic system but can also synthesizes and secretes hypothalamic hormones. These hormones will either stimulate or inhibit the pituitary gland, which releases hormones that go<span> throughout the body to the glands and organs.
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