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NEETZoologyMicrobes in Human Welfare

Biocontrol agents Functions A. Ladybird beetle 1. Controls aphids B. Dragonfly 2. Controls mosquitoes C. Bacillus thuringiensis 3. Controls plant pathogens D. Trichoderma 4. Controls caterpillars

Options

  1. AA-2; B-1; C-3; D-4
  2. BA-1; B-3; C-2; D-4
  3. CA-1; B-2; C-4; D-3
  4. DA-1; B-2; C-3; D-4

Correct answer

C. A-1; B-2; C-4; D-3

Step-by-step solution

The Ladybird beetle is used to control aphids. Dragonflies help to control mosquitoes. Bacillus thuringiensis (Bt) is used to control caterpillars. Trichoderma controls plant pathogens.

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