A pharynx and siphonoglyphs are structures found in
A) HydrA.
B) sea anemones.
C) Aurelia.
D) Obelia.
Correct Answer:
Verified
Q29: The body wall of a Hydra consists
Q30: The medusa of Obelia is the
A)sexual jellyfish
Q31: The function of the siphonoglyph is
A)to pump
Q32: The _ are often bioluminescent.
A)anthozoans
B)ctenophores
C)hydrozoans
D)scyphozoans
Fill in the
Q33: Ctenophores capture prey by use of
A)nematocysts.
B)collenchyme.
C)colloblasts.
D)statocysts.
Q35: Most of the zooids of Obelia are
Q36: In Obelia,the feeding polyp is the
A)perisarc.
B)gonangium.
C)manubrium.
D)hydranth.
Q37: The function of rhopalia is
A)digestive.
B)respiratory.
C)food capture.
D)sensory.
Q38: The tall secretory cells around the pedal
Q39: In cnidarians,extracellular digestion occurs in the
A)gastrovascular cavity.
B)gastrodermal
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