The mosquito is called a vector because it

  1. causes the disease itself
  2. produces antibodies
  3. kills the pathogen
  4. carries the pathogen from one person to another
Answer

D) carries the pathogen from one person to another

Vectors transmit pathogens. O Level Biology · Topic 12 Disease and Immunity · 12.1 Disease

Biology MCQ · More O Level Biology: Disease and Immunity MCQs · Practise