Reproduction: pregnancy

Question 1

How long is the human gestation period?

Answer 1

40 weeks/9 months

Question 2

How long is the 1st trimester?

Answer 2

8-12 weeks

Question 3

How long is the 2nd trimester?

Answer 3

16-32 weeks

Question 4

How long is the 3rd trimester?

Answer 4

32-40 weeks

Question 5

From when is the embryo called a foetus?

Answer 5

3 months, when the bones start to develop.

Question 6

What is the purpose of the placenta?

Answer 6

The placenta allows the exchange of nutrients and oxygen from the mother’s body to the foetus and the wast of the foetus to the mother’s body for excrition.