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What is meant by diffusion?

​What is diffusion? Diffusion is a natural process, definied as the net movement of particles from an area of high concentration to an area of low concentration . But what does this mean? Imagine you're goin...
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Answered by Callum M. • Biology tutor
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Why are enzymes less efficient at temperatures lower than body temperature?

If your body temperature drops, the substrate (the particles that link to the enzyme so that it works) moves slower in your cells because as temperature decreases, so does each individual particle's kinetic ...
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Why are food chains rarely longer than three or four stages?

A lot of energy is lost at each level
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Answered by Paul W. • Biology tutor
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Define 'biomass'

The dry mass of an organism
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Answered by Paul W. • Biology tutor
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What name is given to the junction of two or more neurones?

Synapse
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Answered by Paul W. • Biology tutor
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