Question

matching question
match the structures of hair to their specific functions.
instructions
protection
heat retention
sensory reception
visual identification
color and density of hairs of scalp
hair root plexuses
blanket of thick hair on scalp
scalp hair covering the scalp and shielding it from sunburn and injury.

Explanation:

The color and density of scalp hairs are used for visual identification. Hair root plexuses are nerve - rich areas that help with sensory reception. A blanket of thick hair on the scalp and scalp hair covering the scalp and shielding it from sunburn and injury provide protection. A blanket of thick hair on the scalp also helps with heat retention.

Answer:

protection - blanket of thick hair on scalp, scalp hair covering the scalp and shielding it from sunburn and injury
heat retention - blanket of thick hair on scalp
sensory reception - hair root plexuses
visual identification - color and density of hairs of scalp