First slide
Classification of Animals
Question

The phylum that includes exclusively marine worm-like animals is

Moderate
Solution

Hemichordates are worm-like and are exclusively marine.

Annelids are both aquatic and terrestrial.

Ctenophores are exclusively marine but are not worm-like.

Members of Aschelminthes are worm-like but are ubiquitous (found everywhere). Many of them are parasites.

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