Question

(b) Why do the symptoms of malaria not appear in a person immediately after being bitten by an infected female Anopheles? Give one reason. Explain when and how the symptoms of the disease would appear.

Hint:

The incubation period of malaria allows the parasites to develop in liver cells before causing symptoms.

Answer 1

The sporozoites take time to multiply in liver cells and then infect red blood cells, leading to symptoms. 
Symptoms like fever, chills, and sweating appear after the parasites rupture red blood cells.