When an anopheles of mosquito bites a healthy person if injects:
Correct answer: B. Sporozoites
- A. Merozoites
- B. Sporozoites
- C. Gametocytes
- D. Oocytes
Explanation
The well-matured sporozoites are injected into the human host through the saliva of an Anopheles mosquito when it bites to feed on the blood. When mosquitoes bite, they inject a tiny amount of their saliva (less than a microliter), which contains a specialized, potent cocktail of molecules that numb the pain of the bite and stop the blood from clotting.
This question appeared on the ETEA MDCAT 2008 paper, which you can sit online with every answer explained.
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Kingdom Protista contains mainly unicellular eukaryotes, although some forms are colonial or multicellular, with varied nutritional and reproductive methods. Questions examine protozoans, algae and examples such as Amoeba, Paramecium and Euglena, while distinguishing protists from prokaryotes, fungi and true plants.
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