Flame cells are the excretory structures for which of the following?
Correct answer: D. Platyhelminthes
- A. Annelida
- B. Coelenterates
- C. Echinodermata
- D. Platyhelminthes
Explanation
Flame cell/solenocytes are the main excretory structures of Platyhelminthes.OPTION A: Nephridia are the excretory organs in annelids.OPTION B: The members of Coelenterata are aquatic, so they excrete the body waste directly through the body surface. They lack different organ systems like excretory, digestive, and others.OPTION C: Excretion in echinoderms is by simple diffusion of metabolic wastes (ammonia) across thin permeable regions of the body wall.OPTION D: Flame cell/solenocytes are the main excretory structures of Platyhelminthes.
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