JAMB Biology 2019 Objective — Question 21
Question 21 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2019 Objective paper, with the correct answer and a full explanation.
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Which of the following glands secretes a substances into the bloodstream?
- A. gastric gland
- B. salivary gland
- C. tear gland
- D. adrenal glandCorrect
Explanation
Hormones are secreted by endocrine glands (e.g. adrenal, pituitary, thyroid, parathyroid) directly into the bloodstream. Gastric, salivary and tear glands are exocrine glands, not endocrine.
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