Biological Vectors

What is the primary role of a biological vector?

• To provide food for other organisms

• To carry and spread infectious diseases

• To act as a habitat for parasites

• To pollinate plants

Which disease is commonly spread by mosquitoes?

• Dengue

• Malaria

• Zika

• Yellow Fever

Which of the following is NOT an arthropod that acts as a biological vector?

• Worm

• Aphid

• Flea

• Mosquito

How do aphids transmit plant diseases?

• By blocking sunlight

• By chewing plant roots

• By laying eggs on leaves

• By injecting saliva into plants

What is one natural method to control biological vectors?

• Using chemical pesticides

• Introducing natural predators

• Genetically modifying plants

• Burning infected areas