Airways Animation Play

Alimentary canal Illustration Play

Animals – the invertebrates Class activity Play

Animals – the invertebrates Whiteboard presentation Play

Annelids Student activity Play

Arthropods (phylum Arthropoda) Student activity Play

Chordates (Chordata) – cephalochordates (Cephalochordata) Student activity Play

Effect of external factors on the respiratory system Animation Play

Human respiratory system Illustration Play

Human respiratory system Slideshow Play

Nematodes (phylum Nematoda) Student activity Play

Pharynx Illustration Play

Pharynx and oesophagus Animation Play

Pharynx and oesophagus – another stage in the journey of food Animation Play

Platyhelminths (phylum Platyhelminthes) Student activity Play

Rotifers Student activity Play

Rotifers (phylum Rotifera) Student activity Play

Structure of a rotifer Slideshow Play

Structure of a soil nematode Slideshow Play

Structure of an earthworm – a typical annelid Slideshow Play

Structure of Dendrocoelum lacteum; a typical planarian Slideshow Play

Structure of rotifers Slideshow Play

Structure of the alimentary canal Slideshow Play

Structure of the earthworm's nervous system Animation Play

Structure of the swallowtail butterfly; a typical insect Slideshow Play