A Cow's Digestive System

This short video clearly outlines the digestive system of the cow and describes the function of the rumen in the process. Using animation (projected on a cow) the presenter makes it immediately easier to understand the differences between the ruminant and the mongastric.

Transport of Water in Plants - Video & Animation

This classic scene from the brilliant Private Life of Plants series from the BBC (presented by David Attenborough and available on Amazon for a fiver) shows how water is transported through xylem tubes from the roots to the leaves. It contains some excellent animation of the xylem structure and the journey of water. An excellent video clip but go buy the DVD!

The Components of Blood and Their Functions

Another great short narrated animation which outlines the components of blood (red blood cells, white blood cells, platelets and plasma) and briefly explains each of their functions.

Oxygen Transport - Animation

This excellent animation outlines mechanism for the transportation of oxygen in your body, from its collection in the alveoli of the lungs, its binding to haemoglobin in the red blood cells and subsequent absorption by tissues in the body. It is an excellent introduction to oxygen transport or osmosis.