All of the following bacteria have definite shapes except:
Correct answer: D. Mycoplasma
- A. Clostridium tetani
- B. Spirillum
- C. Salmonella typhi
- D. Mycoplasma
Explanation
Mycoplasma is a type of bacteria that lacks a rigid cell wall. As a result, it doesn't have a definite shape like other bacteria. This group of bacteria is often referred to as "pleomorphic," meaning they can take on various shapes or sizes, ranging from spherical to filamentous. The absence of a cell wall is a unique feature of Mycoplasma, which distinguishes it from other bacteria.
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