In contrast, endoparasites are those that live inside the host body at different sites (liver, kidney, lungs, red blood cells, etc.). The life cycles of endoparasites are more complex because of their extreme specialisation. Their morphological and anatomical features are greatly simplified while emphasising their reproductive potential.
Assertion (A): Endoparasites are parasites that live within their host organisms. Reason (R): Endoparasites feed on the external surface of the host organism.
Correct answer: C — If assertion is true but reason is false.
The Assertion is true - NCERT defines endoparasites as living inside hosts. However, the Reason is false. NCERT states “endoparasites are those that live inside the host body at different sites (liver, kidney, lungs, red blood cells, etc.)” while “Parasites that feed on the external surface of the host organism are called ectoparasites” - the Reason confuses endoparasites with ectoparasites.
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