Which statements describe how the body maintains homeostasis on a hot day? Check all that apply.The nervous system and the muscular system work together.The muscular system and skeletal system work together.Muscles make small, rapid movements to produce heat within the body.Sweat reaches the surface of the skin and evaporates into the air.Muscles underneath the skin contract, causing hair on the skin to stand up.Muscles underneath the skin relax, causing hair on the skin to lay flat.
Answer
A
The nervous system and the muscular system work together.
B
The muscular system and skeletal system work together.
C
Muscles make small, rapid movements to produce heat within the body.
D
Sweat reaches the surface of the skin and evaporates into the air.
E
Muscles underneath the skin contract, causing hair on the skin to stand up.
F
Muscles underneath the skin relax, causing hair on the skin to lay flat.
Explanation
On a hot day, the nervous system helps coordinate the body’s response, including actions involving muscles, so the nervous and muscular systems work together. Sweat evaporating from the skin carries heat away and cools the body. The small muscles attached to hairs relax, letting the hairs lie flat; rapid muscle movements that generate heat and hair standing up are responses to cold.
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