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Grade 12: Biology

Online lessons to help you learn.

Take online learning one step at a time with our digital content and interactive simulations. To launch a lesson click on the green folder symbol. To launch a simulation click on the green hand symbol.

1. Interdependence and Predators

See how species interdependence and the presence of predators controls the size of a population. Understand mutualism, competition for resources, migration and communities.

2. Artificial Immunity

Find out ways we can protect our bodies from diseases and infections.

3. The Components of Blood

Learn about the roles of the various components of blood.

4. The Role Of Blood

The importance of blood in the human body.

5. The Circulatory System

An overview of the body's circulatory system.

6. Defence Mechanisms

How the body defends itself from disease.

7. Plants and Minerals

Understand why plants need minerals to thrive. Learn about some of the most important minerals.

8. Puberty

Learn that changes in hormone concentrations result in the development of secondary sexual characteristics at puberty.

9. Studying Habitats

Understand the observations and measurements that need to be made when studying a habitat.

10. The Menstrual Cycle

Learn about the changes that occur in a woman's body during the menstrual cycle.

11. Using A Quadrat

Learn how to use a quadrat to estimate a plant population size.