Multiple Choice
The function of the siphonoglyph is
A) to pump water into the gastrovascular cavity.
B) to sting the prey.
C) to aid in swimming.
D) unknown.
Correct Answer:
Verified
Correct Answer:
Verified
Q16: The central nervous system of cnidarians includes
Q17: Digestion in cnidarians is<br>A)intracellular only.<br>B)extracellular only.<br>C)both extracellular
Q18: The body wall of a Hydra consists
Q19: Molecular evidence suggests that hydrozoans,scyphozoans,and cubozoans shared
Q20: A distinguishing characteristic of cubozoan medusae is
Q22: In Obelia,the feeding polyp is the<br>A)perisarc.<br>B)gonangium.<br>C)manubrium.<br>D)hydranth.
Q23: The freshwater Hydra has a medusa stage
Q24: Nematocysts are found in some cells lining
Q25: The nematocyst is enclosed within the cell
Q26: Cnidarians are widespread in marine habitats,but there