Unit 3: Evolutionary Change and Biodiversity

A look at the taxonomic classification of the tomato plant and the origin, history and development of tomatoes.

Viruses are not living things - so where did they come from? Scientists have proposed three different hypotheses.

Learn about the categories, or phylum, of the plant kingdom with examples from each.

The What is an Insect? e-book explores the amazing world of insects while showing the characteristics and diversity of insects.

Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.

Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.

Learn about two taxonomy systems that scientists use to classify the life around us.

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

10 images of some animals that have 6 legs and 3 main body parts consisting of a head, thorax and abdomen.

Some dung beetles use alternative reproductive tactics to increase their chances of finding a mate. Learn what this tells us about evolution and biodiversity.

10 images of some animals such as ants and mosquitoes that have 6 legs and 3 main body parts consisting of a head, thorax and abdomen.