Question

marine invertebrate covered with spines

Answer 1

Echinodermata is the phylum name of the marine invertebrates with spines.
These animals have calcium carbonate structure that they use as skeleton.

Some examples are starfish , sea cucumber, sea urchin,etc.
They have coelomic cavity and are radially symmetrical and triploblastic.

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Answer 2

A marine invertebrate covered with spine is starfish. It's whole body is covered with spines and they are vry poisonous....

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