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Which bacterial form can be curved like a spiral, thick and rigid,
○ spirillum
○ coccus
bacillus
O aerobic



Answer :

Final answer:

Bacteria can exhibit different spiral shapes such as vibrio, spirillum, and spirochete.


Explanation:

The spiral shape in bacteria can be observed in three forms: vibrio, spirillum, and spirochete. Vibrios are curved or comma-shaped rods, spirilla are long, thin, and wavy but not helical, while spirochetes are long, thin, wavy, and helical/corkscrew in shape.


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