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Home Q & A Board Biology-Related Homework Help General Biology
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Coconuts Coconuts
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6 years ago
Squalene, spiral valve, electroreceptors, lateral-line system, and claspers are all adaptations associated
  with living members of which lineage?
 
  a. Petromyzontoidea
  b. Chondrichthyes
  c. Actinopterygii
  d. Myxinoidea
  e. Sarcopterygii

Question 2

Living members of the lineage ____ include the sharks, skates, and rays. They all have skeletons made
  entirely of cartilage.
 
  a. Petromyzontoidea
  b. Chondrichthyes
  c. Actinopterygii
  d. Myxinoidea
  e. Sarcopterygii
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mmr53mmr53
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6 years ago
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Coconuts Author
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#2
6 years ago
Just confirmed the same answer from my friend, thanks
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