Food webs with fewer species are more sensitive to the loss of species and ecosystem disturbances
Matter can be broken down into two categories: pure substances<span> and </span>mixtures.Pure substances<span> are further broken down into elements and compounds. ... A chemical </span>substance<span> is composed of one type of atom or molecule. A </span>mixture<span> is composed of different types of atoms or molecules that are not chemically bonded</span>
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"Overfishing and pollution have been blamed for the clam shortage, and scientists believe the harvest must be limited before the stock becomes exhausted."
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~Chiena
It can also be called a column.
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more information is needed, because organisms from both the bacteria and archaea domains are prokaryotic and unicellular.
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