Which of the following is an example of a microorganism in action as a disease vector?
A.
Fungi decomposing dead plant material
B.
Mosquito transmitting malaria
C.
Bacteria causing food poisoning
D.
Algae producing oxygen through photosynthesis
Correct answer is B
A disease vector is an organism that transmits disease-causing pathogens from one host to another. Female Anopheles mosquitoes can carry and transmit the Plasmodium parasite, which causes malaria. When an infected mosquito bites a person, it injects the parasite into the bloodstream, leading to the transmission of the disease.
