Find the odd one out. Give reasons:
snail, oyster, earthworm, octopus
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Earthworm
Reason — Earthworm is annelid while others are molluscs.
Answered By
frog, shark, seahorse, carp
sea urchin, starfish, brittle star, jellyfish
jellyfish, Hydra, sea anemone, butterfly
What are invertebrates?