Question
Which of the following statements is wrong?
Answer: Option B
:
B
Water vascular system is a unique feature of echinoderms, while water canal system is typically found in sponges (Phylum Porifera). Nematocysts or stinging cells are cells that help in defence in cnidarians. Nephridia are excretory organs found in annelids. Phylum Porifera includes sponges, which are exclusively marine.
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:
B
Water vascular system is a unique feature of echinoderms, while water canal system is typically found in sponges (Phylum Porifera). Nematocysts or stinging cells are cells that help in defence in cnidarians. Nephridia are excretory organs found in annelids. Phylum Porifera includes sponges, which are exclusively marine.
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