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Home Q & A Board Biology-Related Homework Help General Biology
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RICHDANGER123 RICHDANGER123
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6 years ago
In a tube-within-a-tube body plan, what forms the outer tube?
  a. The body wall
  b. The wall of the gastrovascular cavity
  c. The vacuolar membrane
  d. The intestinal wall
  e. The gizzard wall

Question 2

Which of the following does not contain a gastrovascular cavity?
  a. hydras
  b. cnidarians
  c. sponges
  d. flatworms
  e. jellyfish
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jmbt96jmbt96
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6 years ago
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RICHDANGER123 Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
zsc999
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Yesterday
Brilliant ツ
Mcb
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2 hours ago
this is exactly what I needed
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