Reading Chapter 23
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. Cnidocytes help a cnidarian survive by
____ 2. Organisms that spend their entire adult lives attached to one spot are said to be
____ 3. Which of the following groups of invertebrates are deuterostomes?
____ 4. The fastest, most agile mollusks are the
____ 5. Some type of body symmetry is found in all invertebrates EXCEPT