Question

DEFINE 1) HEMICHORDATA, 2) UROCHORDATA 3)CEPHALOCHORDATA​

Answer 1

Answer:

1.A small phylum of marine invertebrates that comprises the acorn worms.

2.A group of chordate animals that comprises the tunicates.

3.A small group of marine invertebrates that comprises the lancelets.

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Answer 2

Explanation:

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Hemichordata - meaning from name hemi means half. so these are those marine animals in which dorsal notochord is present in the head region only.

Urochordata - notochord present in tail region only.

cephalochordata - notochord present from head to tail.

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