Question

Which of the following is not a characteristic of phylum echinodermata ?

• A. They have a water vascular system.
• B. They have an internal skeleton.
• C. They are protostomes.
• D. They have bilateral symmetry at larval stage.

Answer 1

Answer: (C)

Species of the phylum echinodermata are deuterostomes in which the anus appeaus first.