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Home Q & A Board Biology-Related Homework Help General Biology
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Ojs123 Ojs123
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6 years ago
Members of the phylum ____ all have at some point during development a hollow dorsal nerve cord, a
  perforated pharynx, a notochord, and segmented muscles in both the body wall and postanal tail.
 
  a. Hemichordata
  b. Echinodermata
  c. Cnidaria
  d. Arthropoda
  e. Chordata

Question 2

Members of the phylum ____ are called acorn worms. They use their mucus-coated proboscis to
  construct U-shaped burrows to trap food particles, and also trap food from water passed through gill
  slits in their pharynx.
 
  a. Hemichordata
  b. Echinodermata
  c. Cnidaria
  d. Arthropoda
  e. Chordata
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umwutumwut
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6 years ago
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Ojs123 Author
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6 years ago
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6 years ago
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