Octocorallian Corals Include Soft Corals,sea Pansies,sea Pens,and Sea Fans and Other

Q6: Coral reefs are limited to areas<br>A)of shallow

Q7: The morphological type adapted to a sedentary

Q8: The radiate animals represent the tissue-organ level

Q9: Ctenophores capture prey by use of<br>A)nematocysts.<br>B)collenchyme.<br>C)colloblasts.<br>D)statocysts.

Q10: The _ are often bioluminescent.<br>A)anthozoans<br>B)ctenophores<br>C)hydrozoans<br>D)scyphozoans<br>Fill in the

Q12: In cnidarians,extracellular digestion occurs in the<br>A)gastrovascular cavity.<br>B)gastrodermal

Q13: Radial symmetry benefits animals that actively move

Q14: Most of the zooids of Obelia are

Q16: The central nervous system of cnidarians includes

Q28: The long thread-like structures that help to