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the variety of life ­ the range of living organisms to be
· Species ­ a group of individual organisms
very similar in appearance, anatomy,
physiology, biochemistry & genetics,
whose members are able to interbreed
freely to produce fertile offspring
· Habitat ­ the place where
species/organisms live…read more

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Biodiversity is about the structural & functional variety in the
living world. We can consider it at a number of levels…read more

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1. Define what is meant by the terms
species, habitat & biodiversity
2. Explain how biodiversity may be
considered at different levels ­ habitat,
species & genetics…read more

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We use sampling to measure the biodiversity of a habitat
by observing all the present species, identifying them,
and count how many individuals of each species there
Ideally we should do this for all plants, animals & fungi
etc. but its not practical
One estimate suggests that there may be billions of
single-celled organisms per square metre of soil.
Instead, you can sample the habitat. Meaning you select
a small portion of the habitat & study it carefully
Then you multiply the numbers of individuals of each
species found
In order to estimate the number present in the habitat…read more

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