Explain why
(a) Mammalian testes are located to hang outside the body.
(b) Four months after fertilization, ovaries can be removed from a human female, without terminating pregnancy.

Answer:

a)
Answer
-Position of the testes provides a slightly cooler environment conducive for the
formation of the sperm.
b)
•Corpus luteum in the ovary secretes progesterone which maintains pregnancy and development of foetus after conception.
•After four months pregnancy is maintained by progesterone from the placenta.

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Explain why (a) Mammalian testes are located to hang outside the body. (b) Four months after fertilization, ovaries can be removed from a human female, without terminating pregnancy.

Explain why
(a) Mammalian testes are located to hang outside the body.
(b) Four months after fertilization, ovaries can be removed from a human female, without terminating pregnancy.