In animals, gonadotrophic hormones
A) stimulate the gonads to produce gametes.
B) inhibit sexual maturation.
C) stimulate spawning.
D) are produced by the ovaries and testes.
E) are released from the hypothalamo-hypophyseal portal-system.
Correct Answer:
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Q18: In some reptiles, what becomes a functioning
Q19: Which of the following statements is NOT
Q20: The thyroid gland is stimulated by
A) thyroxine
Q21: In humans, a condition known as thyrotoxicosis
A)
Q22: The adrenal cortex
A) secretes mineralocorticoids such as
Q24: Which of the following statements about mammalian
Q25: In male mammals, luteinising hormone (LH)
A) stimulates
Q26: In humans, the islets of Langerhans
A) secrete
Q27: Glucagon
A) has hyperglycaemic effects.
B) is secreted by
Q28: Secretin
A) is stimulated by the alkalinity of
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