Question

We should not allow mosquitoes to breed in our surroundings because they

विकल्प

• multiply very fast and cause pollution

• are vectors for many diseases

• bite and cause skin diseases

• are not important insects

Answer 1

are vectors for many diseases

Explanation:

Vectors are living organisms that transmit infectious diseases from animals to humans or from humans to humans, without themselves being affected by the disease. Mosquitoes are the blood-sucking insects that ingest disease-producing microorganisms during a blood meal from an infected host (human or animal) and later inject it into a new host during their subsequent blood meal. Mosquitoes are the vectors for a large number of diseases such as dengue, malaria, filariasis, brain fever, chikungunya, yellow fever, etc.