Question

F. Long answer type questions:
1. Write a short note on endocrine system.
2. Explain some secondary sexual characteristics in body during puberty.
3. How is the sex of a baby determined?​

Answer 1

Answer:

1. The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other thing.

2.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.

3.Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome. An X chromosome combines with the mother's X chromosome to make a baby girl (XX) and a Y chromosome will combine with the mother's to make a boy (XY).