Sea urchins are spiny, globular animals that live on the ocean floor. How are sea urchins classified? A. vertebrates B. invertebrates C. mammals D. arthropods

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Jlb asked Aug 13, 2023

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Sea urchins are spiny, globular animals that live on the ocean floor. How are sea urchins classified?

A. vertebrates

B. invertebrates

C. mammals

D. arthropods

Biology
middle-school

Jlb asked Aug 13, 2023

by Jlb

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Answer:

Step-by-step explanation:

They have no bones, and therefore, they are classified as a invertebrate(s).

Schaechtele answered Aug 13, 2023

by Schaechtele

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14 votes

Answer:

Step-by-step explanation:

because they belong to classe Echinoidea, phylum echonodermata

Shawn Zhang answered Aug 16, 2023

by Shawn Zhang

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