Excretion in star fish done by?

Metanephridia

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Solenocyte

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Protonephridia

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General body surface

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Solution

The correct option is B General body surface
The correct answer is option D.
In starfish, the special excretory organ is not present. The waste product is excreted by diffusion through the body surface. The metanephridium is a type of excretory gland found in many types of invertebrates like annelids, arthropods, and mollusks. Solenocyte is a flagellated cell associated with excretion. It is seen in annelids, mollusks, and rotifers. Protonephridia is an excretory structure in flatworms.

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