Question

) Why the scrotal sacs is located outside the abdominal cavity? (b) Write any 3 secondary sexual characters in males. (c) Draw well labelled diagram of refraction through a prism​

Answer 1

Explanation:

A-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.

B-Growth of body hair, including underarm, abdominal, chest hair and pubic hair.

Growth of facial hair.

Enlargement of larynx (Adam's apple) and deepening of voice.

Increased stature; adult males are taller than adult females, on average.

Heavier skull and bone structure.

C-

Answer 2

Answer:

To decrease the temperature by 3 to 4 °C

sperm ducts, accessory glands and penis