Question

Find the odd one out. Give reasons. 1. ant, cockroach,spider, dragonfly. 2snake, alligator,eel, turtle. 3.frog,shark, seahorse,carp. 4.sea urchin, starfish,brittle star, jellyfish. 5.snail,oyster, earthworm, octopus. 6.jellyfish,Hydra,sea anemone, butterfly. PLEASE HELP ME. AND ALSO GIVE THE REASONS PLEASE​

Answer 1

Find the odd one out. Give reasons.

1. ant, cockroach,spider, dragonfly.

Answer - Spider

Reason - spider is Arachnid but Ant, cockroach, and dragonfly belong to insects .

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2 snake, alligator , eel, turtle.

Answer - eel

Reason - eel is fish but snake, alligator and turtle are reptiles .

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3.frog , shark , seahorse , carp.

Answer - Frog

Reason - frog is amphibian but shark , seahorse , carp are fishes .

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4 .sea urchin , starfish , brittle star , jellyfish.

Answer - jellyfish

Reason - jellyfish belongs to cnidarians but sea urchin , starfish , brittle star are echinoderms .

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5. snail ,oyster , earthworm, octopus.

Answer - earthworm

Reason - earthworm is a annelid but snail ,oyster , octopus are molluscs .

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6. jellyfish , Hydra, sea anemone, butterfly.

Answer - butterfly

Reason - butterfly is an insect but jellyfish , Hydra, sea anemone are cnidarians .