31. Invertebrates
Echinoderms
Multiple Choice
Multiple ChoiceWhich of the following statements about the phylum Echinodermata is true?
A
Many species possess an internal calcareous skeleton and spiny dermal projections.
B
Larval forms show evidence of bilateral symmetry, which is mostly lost in the adult form.
C
One of the clades in this phylum is Asteroidea, which includes the sea stars and sea daisies.
D
All possess a water vascular system, which permits movements via tube feet.
E
All of the listed responses are correct.
632
views
Related Videos
Related Practice
Showing 1 of 6 videos