Answer:
it would be d
Explanation:
You would have to go off of what the diagram said
The boundary separates them<span />
Answer:
it tells you all the answers
Explanation:
Arrector Pili<span> Muscle - This is a tiny muscle that attaches to the base of a hair follicle at one end and to dermal tissue on the other end. In order to generate heat when the body is cold, the </span>arrector pili<span> muscles contract all at once, causing the hair to "stand up straight" on the skin.
Hope this helped, credits go too google.</span>