Question

phyllum echinodermita overview

Answer 1

Answer:

These and many other organisms, living and extinct, make up the Echinodermata, the largest phylum to lack any freshwater or land representatives.

Characteristics of Echinodermata

They have a star-like appearance and are spherical or elongated.

They are exclusively marine animals.

The organisms are spiny-skinned.

They exhibit organ level of organization.

They are triploblastic and have a coelomic cavity.

The skeleton is made up of calcium carbonate.

Explanation:

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