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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
10605 Views

How to avoid mistakes when using Russian verb colocations?

There are no easy ways to remember the correct way to use certain verbs with certain nouns, so it is best just to memorise them. Although it might not seem important, in reality it will help you to increase ...
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Answered by Veronika M. • Russian tutor
4496 Views

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
4689 Views

Define 'biomass'

The dry mass of an organism
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Answered by Paul W. • Biology tutor
5436 Views