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Fish like body with notochord extending ...

Fish like body with notochord extending the entire length of the body. Unsegmented, worm like animals with proboscis, collar and trunk.

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To solve the question regarding the classification of animals with a fish-like body and specific anatomical features, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Identify the Key Features**: The question describes animals with a fish-like body, a notochord extending the entire length of the body, and an unsegmented, worm-like structure with three distinct parts: proboscis, collar, and trunk. 2. **Understand the Notochord**: The notochord is a flexible rod-like structure found in all chordates at some stage of their development. It serves as a primary support structure and is a defining characteristic of the phylum Chordata. ...
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