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Parasites

Parasites are organisms that live in or on another organism and benefits by deriving nutrients at the host’s expense. In this case, humans are the definitive host.... read more

Enteric Bacteria

The enteric species of bacteria are gram-negative rods inhabit the gastrointestinal tract. Some species are part of the normal flora that incidentally cause illness while s... read more



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Start now with 500+ free video lectures
given by award-winning educators!
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