Spiny skinned organisms that have a water vascular system belong to the phylum:
A) Echinodermata.
B) Chordata.
C) Bryozoa.
D) Arthropoda.
E) Mollusca.

Question

Quizplus · Accepted Answer

Echinoderms, such as starfish and sea urchins, have spiny skin and a water vascular system, which is a series of fluid-filled tubes used for movement, feeding, and respiration. The other options (Chordata, Bryozoa, Arthropoda, Mollusca) do not typically have these characteristics.

Spiny Skinned Organisms That Have a Water Vascular System Belong