Answer: an autoimmune disorder.
- A an allergy
- B an autoimmune disorder
- C a deficiency disease
- D a genetic disorder
Correct answer: B. an autoimmune disorder
Explanation: In autoimmune diseases like rheumatoid arthritis, the immune system fails to distinguish self from non-self and attacks the body own cells and tissues.
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.