Question

Choose the odd one out and give scientific reasons.

Tapeworm, Planaria, Liver fluke, Earthworm.

Answer 1

Odd one is earthworm because it belongs to the Phylum - Annelida. There body is distinctly marked out into segments or metamers. While Tape worm, planaria and liver fluke belongs to Phylum-Platyhelminthes. Their body are bilaterally symmetrical and do not have segments