A) Animal group - Sponges Lifestyle - Sessile filter feeders Structure/function - Amoebocytes/ carry food and wastes Spicules/Support and Protection sponging / support
B) Animal group - Cnidarians Lifestyle - Free floating or attached Structure/function - Gastrovascular cavity / digestion Cnidocytes / protection and getting
C) Animal group - Flatworms Lifestyle - Free living or parasite Structure/function - Flame cells/excretion Tegument/protection
D) Animal group - Molluscs Lifestyle - Terrestrial marine, fresh Structure/function - Radula/feeding mantle/motility water inhabitants
Correct Answer: D
Solution :
[d] In the molluscs mantle is a loose fold of skin, not concerned with locomotion.
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