Question

what is echinodermata​

Answer 1

Answer:

a phylum of marine invertebrates which includes starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers. They have fivefold radial symmetry, a calcareous skeleton, and tube feet operated by fluid pressure.

Answer 2

$\huge{\underline{\tt{\blue{ Characteristic\:Of\:Echinodermata -}}}}$

• These are spiny skinned organisms.

• They are marine animals

• They are triploplasic.

• They have a peculiar water driven tube system use for moving around.

• They have coelmic cavity.

• They have hard calcium carbonate structures.

• There body is covered by spiny exoskeleton.

• These are spherical or elongated or star like.

• Locomotion occurs by tube feet or podia.

• They've a high power of regeneration.

• Example = starfish, sea unicorn, sea cucumber, Sea lilies, brittle stars.