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Home Q & A Board Biology-Related Homework Help General Biology
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kellydevenney kellydevenney
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6 years ago
Which of the following groups contains
  organisms that produce free-living larvae?
  a. cnidarians
  b. echinoderms
  c. arthropods
  d. cnidarians and echinoderms
  e. cnidarians, echinoderms, and arthropods

Question 2

A water-vascular system is characteristic of the
  phylum
  a. Arthropoda.
  b. Annelida.
  c. Chordata.
  d. Mollusca.
  e. Echinodermata
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amiraamira
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6 years ago
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kellydevenney Author
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#2
6 years ago
Just confirmed the same answer from my friend, thanks
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