Which term describes a sea urchin's taxonomic classification?

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Multiple Choice

Which term describes a sea urchin's taxonomic classification?

Explanation:
Classifying organisms by their hierarchical group helps show evolutionary relationships. Sea urchins are echinoderms, and the term that names their class is Echinoidea, which identifies the specific lineage within the phylum Echinodermata. This is why Echinoidea is the best descriptor for their taxonomic classification. The other terms refer to entirely different concepts: Gastropoda is a class of mollusks (snails and slugs), Endotherm describes heat regulation, and Fissipedia is an outdated grouping not used for sea urchins.

Classifying organisms by their hierarchical group helps show evolutionary relationships. Sea urchins are echinoderms, and the term that names their class is Echinoidea, which identifies the specific lineage within the phylum Echinodermata. This is why Echinoidea is the best descriptor for their taxonomic classification. The other terms refer to entirely different concepts: Gastropoda is a class of mollusks (snails and slugs), Endotherm describes heat regulation, and Fissipedia is an outdated grouping not used for sea urchins.

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