Question

a ribbon of smooth muscle, which pulls on a hair follicle and elevates the hair in response to cold temperature or fear, is called a(n):

Explanation:

The arrector pili is a smooth muscle ribbon that attaches to hair follicles, contracting to elevate hair (goosebumps) in cold or fear. Other options: root hair plexus (sensory), hair papilla (nourishment), lanugo (fetal hair), glassy membrane (connective tissue) don’t match.

Answer:

E. arrector pili