Question

multiple choice question
the exposed parts of nails and hair are composed of ______ keratinocytes.
o sebaceous
o arrector pili
o regenerated
o dead

Explanation:

Nails and hair are made up of keratin - rich structures. The exposed parts are composed of dead keratinocytes. Sebaceous refers to oil - producing glands, arrector pili are muscles associated with hair follicles, and regenerated is not the correct term for the composition of the exposed parts.

Answer:

O dead