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Fertilisation (BBC Bitesize)
An explanation of fertilsation using a short video, which includes how gender is determined.

Sexual and asexual reproduction video clip (BBC Bitesize)
An interactive video clip that explains the differences between sexual and asexual reproduction (also called cloning).

Fertilisation (BBC Bitesize)
Learn how eggs and sperm fuse to form a new life.

Development of the foetus (BBC Bitesize)
Learn how a foetus develops in mammals and other animals.

Fertilisation and sex cells (BBC Bitesize)
Learn about fertilisation in humans and other animals and how gametes are adapated.

Infertility (BBC Bitesize)
Some couples are unable to have children. Visit this site to learn how they can be helped.

Controlling fertility (BBC Bitesize)
Fertility can be reduced by taking contraceptives or increased using a range of techniques, including IVF.

Gender determination (BBC Bitesize)
Have you ever wondered why you are the gender you are? Click here to find out.

The human body and mind (BBC)
Click here for an index for many webpages about your body, including bones, muscles and puberty.

The menstrual cycle (BBC)
Click here for a student-friendly webpage about periods including a link to an animated menstrual cycle.

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