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an antibiotic produced by the Penicillium mould.
damage caused to the vegetation when it is intensively fed upon by grazing animals and does not...
the process whereby certain substances are removed from a liquid and others retained, due to...
compounds that consist of any combination of elements, but do not usually contain carbon and...
atmospheric gases, especially carbon dioxide, methane, nitrous oxide, ozone and water vapour,...
muscles that work in pairs and are responsible for causing movement in opposite directions in...