Olabs Class 9 Biology. We covered all the Olabs Class 9 Biology MCQs in this post for free so that you can practice well for the exam.
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Olabs Class 9 Biology Objective for Students
Which of the following hormones is not secreted by the anterior pituitary?
(a) Growth hormone
(b) Follicle-stimulating hormone
(c) Oxytocin
(d) Adrenocorticotropic hormone
Option c – Oxytocin
Which of the following endocrine glands in humans is not found in pairs?
(a) Adrenal
(b) Pituitary
(c) Testes
(d) Ovary
Option b – Pituitary
Which of the following does not play any role in calcium balance in the human body?
(a) Vitamin D
(b) Parathyroid hormone
(c) Thyrocalcitonin
(d) Thymosin
Option d – Thymosin
A hormone responsible for the normal sleep-wake cycle is
(a) Epinephrine
(b) Gastrin
(c) Melatonin
(d) Insulin
Option c – Melatonin
Leydig cells produce a group of hormones called
(a) Androgens
(b) Estrogens
(c) Aldosterone
(d) Gonadotropins
Option a – Androgens
We covered all the Olabs Class 9 Biology MCQs above in this post for free so that you can practice well for the exam.
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