SL Reproduction Questions

Hormones

The endocrine system consists of glands which produce hormones. 

1) What is a hormone ?
2) Which hormones are responsible for male secondary secondary sexual characteristics?
3) Which cells produce these hormones?
4) List five male secondary sexual characteristics.

5) In females which hormone is the same as the male one for controlling puberty.?
6) What's the name of the other female hormone ?
7) List five female secondary sexual characteristics?

Development of the Zygote

8) Arrange these processes in the correct order for the early development of a fertilized zygote:

• cleavage continues forming 4 cells then 8.
• more cell divisions form a hollow blastocyst
• the head of the sperm cell fuses with the membrane of the egg
• mitosis occurs within 12 hours of fertilization to form two cells
• finger like projections grow form the outer layer of the blastocyst
• the blastocyst embeds itself into the uterus lining.