Fill up the blanks -

A. In malaria, the rupture of ____ release a toxic substance called ____ which is responsible for the chill and

recurring fever.

B. _____ results in blockage of the intestinal passage. A healthy person acquires this through contaminated

water, vegetables, fruits etc.

C. T-lymphocytes mediate ______ immunity and B-lymphocytes mediate ______ immunity.

D. Genes in normal cells which when activated under certain conditions can cause cancerous transformation, are

called ______.

E Smoking increases ______ content in blood and reduces the concentration of haernbound oxygen. This

causes oxygen deficiency in the body.