Welcome to your B6 Practice Questions 1.3

1. 
The changes that happen during puberty are caused by chemicals in the body called hormones.

2. 

In males, the sex cells are called .

3. 

In girls, puberty often starts from the age of .

4. 

During reproduction, a sperm and an egg join together to form a new living being. This process is called .

5. 
What are the female sex cells called?

6. 
In boys, puberty usually starts when they are about what age?

7. 

The male reproductive organs that produce sperm are called the .

8. 

In girls, starts about a year after puberty begins, when an unfertilised egg is released together with the lining of the uterus.

9. 
How often does menstruation usually happen?

10. 
A boy's body starts to make sperm during puberty.

11. 
In which part of the female reproductive system does fertilisation take place?

12. 
Which part of the male reproductive system carries the sperm to the penis?

13. 

The female organ where the baby develops is called the uterus or .

14. 

In females, the produce the ova or egg cells.