Digestion of food rich in cellulose Class activity Play

Digestion times for different foods Chart Play

Digestive strategies of herbivores Slideshow Play

Digestive strategies of herbivores Student activity Play

Effect of light on the growth of food plants Slideshow Play

Electron configuration Student activity Play

Energy expenditure and loss in heterotrophs Student activity Play

Energy flow and food chains Student activity Play

Energy flow through food chains Animation Play

Energy in a food chain Student activity Play

Energy in a food chain Whiteboard exercise Play

Energy input and energy output Animation Play

Energy losses in a food chain Slideshow Play

Energy resources Student activity Play

Energy transfer Student activity Play

Energy-saving adaptations Student activity Play

Energy-saving feeding adaptations Slideshow Play

Enterobiasis Slideshow Play

Environmental changes – dietary changes Student activity Play

Environmental changes – dietary changes Whiteboard exercise Play

Enzymes Student activity Play

Establishing systematics – the work has only just begun Student activity Play

Examples of different forms of energy Slideshow Play

Examples of habitats Slideshow Play

Excluded population groups Whiteboard exercise Play