The three body parts are proboscis, collar and trunk. What was once thought to be a notochord is no longer considered homologous. Acorn worms are examples of hemichordates. The Urochordates and Cephalochordates are protochordates, but belong to the Phylum Chordata.
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Answer:
The three body parts are proboscis, collar and trunk. What was once thought to be a notochord is no longer considered homologous. Acorn worms are examples of hemichordates. The Urochordates and Cephalochordates are protochordates, but belong to the Phylum Chordata.
Explanation:
The three body parts are proboscis, collar and trunk.
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