Internal Fertilisation - Type 1
Science: Year 5 & 6 National Curriculum, topic 1.3.2
Internal Fertilisation - Type 1
Internal fertilisation happens inside the female's body. There are three types of offspring development after internal fertilisation.

Type 1
- The offspring develop inside the body of the female.
- The offspring are born alive.
- This type is the most common in mammals.
Test yourself on Internal Fertilisation - Type 1
Where do the young develop after fertilisation in mammals?
In which group of animals is it more common for the offspring to be born alive?
What is correct about internal fertilisation type 1?