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The overgrowth of cacti was checked by t...

The overgrowth of cacti was checked by the introduction of:

A

Preying mantis

B

Cochineal insect

C

Mycoherbicide

D

Lady bugs

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The correct Answer is:
B
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MBD PUBLICATION-MICROBES IN HUMAN WELFARE-QUESTION BANK
  1. Mycorrhiza is a :

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  2. Total consumption of fertilizers in India is about:

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  3. The overgrowth of cacti was checked by the introduction of:

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  4. The vitamin whose content increases following the conversion of milk i...

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  5. Wastewater treatment generates a large quantity of sludge , which can ...

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  6. Methanogemc bacteria are not found in :

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  7. Match the following list of bacteria and their commercially important ...

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  8. Match the following list of bioactive substances and their roles:

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  9. The primary treatment of waste water involves the removal of :

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  10. BOD of waste water is estimated by measuring the amount of :

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  11. Which one of the following alcoholic drinks is produced without distil...

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  12. The technology of biogas production from cow dung was developed in Ind...

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  13. The free - living fungus Trichoderma can be used for :

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  14. What would happen if oxygen availability to activated sludges flocs is...

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  15. Mycorrhiza does not help the host plant in:

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  16. Which one of the following is not a nitrogen - fixing organism ?

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  17. Big holes in Swiss cheese are made by a :

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  18. The residue left after methane production from cattle dung is :

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  19. Methanogens do not produce :

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  20. Activated sludge should have the ability to settle quickly so that it ...

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