Which term refers to spherical bacteria?

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Multiple Choice

Which term refers to spherical bacteria?

Explanation:
Shape is the key. Bacteria that are spherical are called cocci (singular: coccus). The word coccus specifically means a round, ball-shaped cell, so it designates spherical bacteria. The other terms describe different shapes: vibrio for curved, comma-shaped rods; bacillus for straight rods; and spiral for spiral-shaped bacteria. So the spherical form is described by coccus.

Shape is the key. Bacteria that are spherical are called cocci (singular: coccus). The word coccus specifically means a round, ball-shaped cell, so it designates spherical bacteria. The other terms describe different shapes: vibrio for curved, comma-shaped rods; bacillus for straight rods; and spiral for spiral-shaped bacteria. So the spherical form is described by coccus.

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