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Module 1: Organisms, Nutrients and Digestion

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XSIQ
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Biology - Viruses

Viruses

Viruses vary in shape and are extremely small. They are only visible
under an electron microscope.

Viruses are not cells and are not considered living things because they:

* have no cell membrane (instead they have a protein coat)

* cannot reproduce themselves without the assistance of a host cell.

Pox virus