Multiple Choice
The ______________ are often bioluminescent.
A) anthozoans
B) ctenophores
C) hydrozoans
D) scyphozoans
Fill in the Blank Questions
Correct Answer:

Verified
Correct Answer:
Verified
Q5: The medusa of Obelia is the<br>A)sexual jellyfish
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.
Q11: Octocorallian corals include soft corals,sea pansies,sea pens,and
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
Q28: The long thread-like structures that help to