Question

select the correct answer.
while washing her hair, olivia noticed that she was losing a lot of hair. she visited a clinic, and the physician reassured her that her hair would grow back. how do you think olivia’s hair will grow back?
a. the hair will grow back by undergoing regeneration.
b. the hair will grow back by undergoing meiosis.
c. the hair will grow back by undergoing binary fission.
d. the hair will grow back by undergoing mitosis.

Explanation:

To determine how Olivia's hair grows back, we analyze each option:

• Option A: Regeneration typically refers to the replacement of lost body parts (like a lizard's tail), not hair growth. Hair growth is from cell division in hair follicles, not regeneration.
• Option B: Meiosis is cell division for gamete (sperm/egg) production, reducing chromosome number. Hair growth doesn't involve meiosis.
• Option C: Binary fission is asexual reproduction in prokaryotes (like bacteria) or some single - celled eukaryotes. It's not related to hair growth in humans.
• Option D: Mitosis is the process of cell division that produces two identical daughter cells. Hair follicle cells undergo mitosis to produce new cells that lead to hair growth. So, hair grows back through mitosis.

Answer:

D. The hair will grow back by undergoing mitosis.