Multiple choice

Protists are useful in the various manners. Which among the following is not a use of protists?

  1. Primary producer of aquatic ecosystem

  2. Source of commercial products

  3. Source of medicines

  4. Source of mineral

  5. Source of biological pest control
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Bacteria can also be used in the place of pesticides in the biological pest control. This commonly uses Bacillus thuringiensis (also called BT), a Gram-positive, soil dwelling bacterium. This bacteria is used as a Lepidopteran-specific insecticide under trade names such as Dipel and Thuricide.

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