ANATOMY

Detailed explanation-1: -It holds the testicles (also called testes), as well as many nerves and blood vessels. The scrotum protects your testes, as well as providing a sort of climate control system. For normal sperm development, the testes must be at a temperature slightly cooler than the body temperature.

Detailed explanation-2: -The testicles make sperm. To do this, the temperature of the testicles needs to be cooler than the inside of the body. This is why the scrotum is located outside of the body.

Detailed explanation-3: -Sperm production is at its best when the testicles are several degrees cooler than your body temperature. That’s why they hang outside the body in the scrotum (the pouch of skin that contains the testicles and a network of blood vessels and nerves).

Detailed explanation-4: -Answer: Solution: The testes is located outside the abdominal cavity because sperm formation requires a temperature lower than the body temperature. It is because scrotum has a temperature 1-3 degree Celsius lower than the normal body temperature, which is essential for the production of sperm or male gametes.

Detailed explanation-5: -Physics shows that temperature increases mutations. While it may be alright to have very quickly replicating tissues such as intestinal linings have a deformity or a mutation here and there, if that one sperm that has a mutation is the one to fertilize the egg then fitness is severely compromised.