Multiple choice

Which of the following is an echinoderm?

  1. Chiton

  2. Balanoglossus

  3. Antedon

  4. Scoliodon

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antedon is a genus of crinoids (sea lilies), which belong to the phylum Echinodermata. Chiton is a mollusk, Balanoglossus is a hemichordate, and Scoliodon is a cartilaginous fish (Chondrichthyes).