The body wall of a Hydra consists of an outer epidermis and an inner gastrodermis with ______________ between them.
Correct Answer:
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Q24: The structure of the nervous system in
Q25: Coral reefs are limited to areas
A)of shallow
Q26: Sea anemones and corals lack
A)a sexual stage.
B)an
Q27: The ciliated larva of the cnidarians is
Q28: Reef-building corals have mutualistic algal cells in
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.
Q34: A pharynx and siphonoglyphs are structures found
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