While comparing invertebrate groups, a physician suspects leishmaniasis in a patient from an area with biting sand flies. The feature being tested is:

Correct Answer: D

Leishmania is commonly transmitted by sand fly

Leishmania species are protozoan parasites transmitted by sand flies. They can cause cutaneous, mucocutaneous, or visceral disease depending on the species and host response. This MCQ belongs to the Medical importance topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.