Question

1. choose the best answer. a ______ is a pouch - like structure surrounding the root of a hair. gland keratin follicle fat cell
2. choose all that apply. choose two ways that the skin adapts to temperature.

a person gets very cold, the skin begins to burn fat cells to create warmth.
if a person starts to get hot, the vessels will expand, sending warm blood closer to the surface of the skin, allowing it to cool.
if a person gets very cold, the blood vessels in the skin will contract, keeping as much heat as possible inside the body
if a person gets very warm, “goose bumps” form on the skin to release heat.

Explanation:

For question 7: A follicle is the pouch-like structure that surrounds the base of a hair follicle. Glands are secretory structures, keratin is a protein in hair/nails, and fat cells store fat, so they do not match the description.
For question 8: When overheated, skin blood vessels expand to release heat. When cold, blood vessels contract to retain heat. Fat cells are not burned for warmth, and goose bumps form when cold (to trap heat, not release it).

Answer:

1. B. follicle

8)

• If a person starts to get hot, the vessels will expand, sending warm blood closer to the surface of the skin, allowing it to cool.
• If a person gets very cold, the blood vessels in the skin will contract, keeping as much heat as possible inside the body.