Excitatory and inhibitory synapses Animation Play

Excretion of drugs Animation Play

Excretory functions Illustration Play

Excretory organs in animals Student activity Play

Excretory organs in animals Whiteboard exercise Play

Excretory organs in animals Whiteboard exercise Play

Excretory system of annelids Illustration Play

Excretory system of flatworms Illustration Play

Excretory system of insects Illustration Play

Excretory system of vertebrates Illustration Play

Exergonic reaction Animation Play

Experiencing emotions Whiteboard exercise Play

Experiment Animation Play

Experiment on energy substances of the organism and cell respiration Simulation Play

Experiment to show cardiovascular reflexes Animation Play

Exploitation of natural resources Whiteboard exercise Play

Exploring the natural world Slideshow Play

Exploring the natural world Slideshow Play

Expression of genotype Audio text Play

Expression of genotype as traits in the phenotype Animation Play

Extended and condensed chromatin Slideshow Play

External and internal fertilization Slideshow Play

External fertilization Animation Play

External fertilization in newts and salamanders Animation Play

External gills Slideshow Play

External muscle structure Animation Play

External structure of a root Simulation Play

External structure of the heart Slideshow Play

Extinction of the dinosaurs Animation Play

Extra-cellular digestion in fungi Slideshow Play