Question

19.Assertion- Human testis descend in scrotal sac. Reason-Sperm formation require 2o Celsius less temperature than human body temperature

a. If both assertion and reason are true and reason is the correct explanation of assertion.

b. If both assertion and reason are true and reason is not the correct explanation of assertion.

c. If assertion is true and reason is false

d. If both assertion and reason is false

plzzz ans. me fast... ​

Answer 1

Answer:

mark me as brelient

Explanation:

The normal temperature of the testes In the scrotum is about 2o−2.5o C lower than the internal body temperature. When the body is chilled, the smooth muscle contracts and brings the testes closer to the pelvic cavity. This movement towards the pelvic cavity allows the testes to absorb heat from the rest of the body so that the sperm cells do not become chilled and get optimum temperature for spermatogenesis.

So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.