Refer to the following combination of excretory structure, …

Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 9 PCB MCQ (Single Correct)

Refer to the following combination of excretory structure, organism and their mode of excretion. Identify the incorrect combination.
(I) Green glands - Crustacean - ureotelic
(II) Malpighian tubule - Insect - uricotelic
(III) Nephridia - Annelida - uricotelic
(IV) Flame cells - Aschelminthes - ammonotelic

I, II and III only

I, III and IV only

II, III and IV only

I, II and IV only

Text Solution

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The correct answer is:

• Crustaceans (aquatic insects) are mainly ammonotelic; green (antennal) glands excrete ammonia.

• Insects excrete uric acid through malpighian tubules.

• Annelids (e.g., earthworm) are primarily ureotelic and excrete urea through nephridia.

• Flame cells occur in Platyhelminthes (Planaria), not Aschelminthes (nematodes).

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