A desert food web Illustration Play

A typical food web Student activity Play

Animals with the same characteristic survival curve as mice Slideshow Play

Death rate (mortality) and survival rate (survivorship) Student activity Play

Death rate and survival rate in different animal populations Whiteboard exercise Play

Energy flow and food chains Student activity Play

Examples of speed equation calculations Student activity Play

Factors affecting rabbit populations Whiteboard exercise Play

Feeding relationships Student activity Play

Fermentation chamber in the large intestine Student activity Play

Food web terminology Student activity Play

Genotype and phenotype Student activity Play

How a pyramid of numbers works Animation Play

How food chains work Student activity Play

Human factors Slideshow Play

Interaction in an ecosystem Student activity Play

Parasites Animation Play

Plants and animals in food chains Illustration Play

Population Student activity Play

Predation Student activity Play

Predator–prey relationships Student activity Play

Producers and consumers Student activity Play

Pyramids of numbers Student activity Play

Selective breeding in animals Student activity Play

Selective breeding in plants Slideshow Play