crazyin73 crazyin73

24-03-2022
Biology

contestada

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

Respuesta :

Ruos4476 Ruos4476

24-03-2022

Answer:

B

Explanation:

because they belong to classe Echinoidea, phylum echonodermata

Answer Link

KiaraKitsune KiaraKitsune

24-03-2022

Answer:

B

Explanation:

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

Answer Link

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