Mention the similar characteristics of earthworms worm leech and sponge
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Earthworm, leech and sponge all have thin and elongated bodies. Earthworm and leech have segmented bodies; while sponge has numerous pores all over the body.
Both leech and sponge reproduce sexually; while earthworm can reproduce sexually and also regenerate asexually.
Though earthworm and leech have definite digestive systems; sponge does not have any definite digestive or other metabolic body systems.
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