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STD 12 - 8. microbes in human welfare — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 8. microbes in human welfare1 Mark
MCQ
Bacillusthuringiensis is used to control
  • A
    Bacterial pathogens
  • B
    Viral pathogens
  • C
    Protozoans
  • ✓
    Insect pests
✓

Answer

Correct option: D.
Insect pests
d
The bacteria Bacillus thuringiensis a wide range of insects such as $(B t)$ are used to controls butterfly caterpillars, ants, moths, etc. Some strains of this bacteria can kill animal and plant parasitic nematodes, snails, protozoans and even cockroaches

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