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Home Q & A Board Biology-Related Homework Help General Biology
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endraxz endraxz
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6 years ago
Describe the shared derived characteristics that support grouping the hemichordates, chordates, and echinoderms
  together as deuterostomes. What will be an ideal response?

Question 2

The monotremes are an unusual group of mammals because they:a.
   lack mammary glands.
  b. lack hair
  c. lay eggs.
  d. have pouches.
  e. exhibit parthenogenesis
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redrider89redrider89
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6 years ago
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endraxz Author
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#2
6 years ago
All correct!
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