Spiral or corkscrew-shaped bacteria are called _____.

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Multiple Choice

Spiral or corkscrew-shaped bacteria are called _____.

Explanation:
Spiral-shaped bacteria are called spirilla. In bacterial forms, cocci are spherical, bacilli are rod-shaped, and vibrios are curved like a comma. Spirilla describe the rigid, helical, corkscrew-like bacteria that move by twisting through fluids. (Related but distinct are spirochetes, which are also spiral but more flexible.) This is why spirilla is the best answer for spiral or corkscrew-shaped bacteria.

Spiral-shaped bacteria are called spirilla. In bacterial forms, cocci are spherical, bacilli are rod-shaped, and vibrios are curved like a comma. Spirilla describe the rigid, helical, corkscrew-like bacteria that move by twisting through fluids. (Related but distinct are spirochetes, which are also spiral but more flexible.) This is why spirilla is the best answer for spiral or corkscrew-shaped bacteria.

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