Question

4. With the onset of puberty, changes in body features in humans occur mainly due to the secretion of
(a) testosterone from testes and estrogen from ovary.
(b) testosterone from ovary and estrogen from testes.'
(c) estrogen from pancreas and testosterone from pituitary.
(d) estrogen from pituitary and testosterone from pancreas.
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Answer 1

Answer:

a) testosterone from tested and estrogen from ovary.

Answer 2

answer:-(a) testosterone from testes and estrogen from ovary.

Explanation:

Dramatic changes during puberty lead to physical and mental changes. Puberty is the transition stage towards sexual maturity. Thus, the key role is played by sex hormones that are steroids. In humans, the principal male hormone is testosterone which is produced by testes that promotes development of secondary sexual characteristics. While, Oestrogen produced by the ovary is responsible for development of secondary sexual characters in females.

So, the correct answer is 'Testosterone from testes and estrogen from ovary.