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A hormone secreted at IV serves to

Biology
JAMB 2002

A hormone secreted at IV serves to

  • A. make the body react to emergencies
  • B. lower blood glucose level
  • C. raise the level of calcium ions in the blood
  • D. facilitate the development of facial hairs
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Correct Answer: Option D
Explanation

The primary hormone facilitating facial hair development in both men and women is testosterone, along with its derivative dihydrotestosterone (DHT). These androgens stimulate hair follicle growth, converting fine, vellus hairs into thicker, darker terminal hairs, particularly in areas like the face, chest, and back. 

Testosterone is the main androgen hormone responsible for the development of male secondary sexual characteristics, including facial hair. It also plays a role in hair growth in women, although in lower concentrations. Testosterone is primarily found in the testicles (testes) in men and ovaries in women. Additionally, adrenal glands in both sexes also produce testosterone, though in smaller amounts. 


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