11. which of the following events occurs first? a. the brain sends a signal to the muscles. b. the blood vessels just under your skin become narrow. c. the hypothalamus detects a drop in body temperature. d. you shiver.

The correct answer is option C.

The organ system of the body functions in combination to maintain homeostasis unconsciously and consciously. They spontaneously amend towards the changes in its outer surrounding to maintain the internal environment at optimal levels for the health.

Hypothalamus is the part of the brain, which helps in maintaining the internal balance of the body. It is the part of the brain, which monitors the activities, like body temperature, hunger, and the discharging of various hormones.

In order to maintain homeostasis, the drop in temperature of the body is first detected by the hypothalamus. After that, the signal is sent to the muscles, and then the blood vessels underneath the skin get constricted and one shiver.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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answer: blah

explanation:

bc blah