Which, among the following, are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

1. Pseudomonas 2. Mycoplasma
3. Nostoc 4. Bacillus
Subtopic:  Kingdom Monera: Actinomycetes & Mycoplasma |
 95%
Level 1: 80%+
NEET - 2017
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