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Standard IX
Biology
Echinodermata
Hemichordata ...
Question
Hemichordata have gills or not?
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Solution
Hemichordata
Hemichordata is a phylum of marine deuterostome organisms that is sometimes referred to as the echinoderms' sister group.
The existence of a stomochord is one of Hemichordata's most distinguishing features.
They have a genuine coelom and are bilaterally symmetrical, and triploblastic.
They use proboscis glands for excretion and have
gills for respiration.
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