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Respiration and exercise video clip (BBC Bitesize)
An interactive video clip which describes the differences between aerobic and anaerobic respiration and the effects of exercise on the body.

The circulatory system video clip (BBC Bitesize)
An interactive video clip which describes the circulatory system, including the function of the heart and heart disease caused by genetic and enviromental factors.

Respiration video clip (BBC Bitesize)
How respiration releases energy from food is explained in a video clip and a list of key points.

The circulatory system (BBC Bitesize)
The circulatory system pumps blood and other substances around our bodies. Visit this site to learn how it does this.

The heart (BBC Bitesize)
Click here to learn the structure and function of the heart.

Exercise (BBC Bitesize)
Learn what effects exercise has upon your body.

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 immune system
 blood cells
 biotechnology
 oils
 aerobic and anearobic respiration
 exercise
 blood
 heart
 arteries veins and capillaries
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