Question

Gambusia fish should be introduced in lakes and ponds of India to control a deadly disease. It feeds on the larvae of:

• A. Termites
• B. Mosquito
• C. Dragonfly
• D. Housefly

Answer 1

The correct option is B Mosquito

Gambusia fish, also known as mosquito fish, is larvicidal i.e. feeds on insect larvae. The name 'mosquitofish' was given because the diet of this fish sometimes consists of large numbers of mosquito larvae. These were introduced directly into lakes and ponds in many parts of the world to eat mosquito larvae (especially of Anopheles mosquitoes) to control malaria.

Therefore, the correct answer is option B.