Question

1. use the body model to explain how the body regulates the core temperature. human body model

Explanation:

When the body is hot, the brain signals blood vessels to dilate for heat - release and sweat glands to produce sweat for cooling. When cold, the brain signals blood vessels to constrict to conserve heat and muscles to contract and shiver to generate heat.

Answer:

When the body is hot, blood vessels dilate and sweat glands produce sweat to cool down. When cold, blood vessels constrict and muscles shiver to conserve and generate heat respectively.