Answer: IgE.
- A IgA
- B IgG
- C IgM
- D IgE
Correct answer: D. IgE
Explanation: Allergies are due to the release of chemicals like histamine and serotonin from mast cells, triggered by IgE antibodies produced in response to allergens.
The Plasmodium parasite needs both hosts: the female Anopheles mosquito injects sporozoites while biting (infecting the human liver and RBCs, causing the malaria fever cycle), then picks up gametocytes from an infected person's blood, completing the parasite's sexual stage inside the mosquito.
Concept context
Pathogens, infectious diseases, non-infectious diseases, drugs, cancer, and public health. High NEET importance.