First slide

Excretory Products and Organs

Question

Select the option which shows correct matching of animal with its excretory organ and excretory product

Moderate

A

Ascaris - Flame cells - Ammonia
B

Rana - Kidneys - Uric acid
C

Bombyx - Green glands - Uric acid
D

Lumbricus - Nephridia - Urea

Solution

Lumbricus is an earthworm. The excretory organs of earthworms (phylum Annelida) are nephridia. Earthworms are ureotelic. Flame cells are present in flatworm (e.g., tapeworm) but not roundworms (e.g., Ascaris). Rana (common frog) is ureotelic. The excretory organs of insects (e.g., Bombyx, the silk moth) are Malpighian tubules.

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