Question -
Pick the wrong statement(s) from the following:
Options:
A .  Annelids have a closed circulatory system.
B .  Crabs possess an endoskeleton.
C .  Animals belonging to Phylum Porifera are exclusively aquatic.
D .  Nematocysts are characteristic of Phylum Cnidaria.
Answer: Option B : B Crabs belong to Phylum Arthropoda, the members of which typically have a chitinous exoskeleton, and not an endoskeleton like higher animals.
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