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Home Q & A Board Biology-Related Homework Help General Biology
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xr xr
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6 years ago
/Refer to Figure 31-2. Which structure is the mouth in this animal?
  A. 1
  B. 4
  C. 5
  D. 6
  E. 8



Question 2

Like the cnidarians, flatworms depend on __________ for achieving circulation and gas exchange.
  A. blood
  B. hemolymph
  C. diffusion
  D. hearts
  E. lungs
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houghtk2houghtk2
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xr Author
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6 years ago
TY
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6 years ago
My pleasure
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