Question

cocci bacilli spirilla and vibrium among which is dangerous bacteria​

Answer 1

Bacteria are prokaryotic, unicellular microorganisms, which lack chlorophyll pigments. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles.

Due to the presence of a rigid cell wall, bacteria maintain a definite shape, though they vary as shape, size and structure.

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Answer 2

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