Question

In mammals, the testes lie in the scrotal sacs due to the

• A. Presence of urinary bladder
• B. Presence of rectum
• C. Long vas-deferens
• D. Requirement of low temperature for sperm formation

Answer 1

The correct option is D Requirement of low temperature for sperm formation

The process of spermatogenesis or the formation of sperms require a lower temperature (1-6 degree C lower) than the normal body temperature to produce viable sperms. Hence, the sperms are stored outside in a sac-like structure called scrotum.
So, the correct answer is option D.