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Question 20 (2 points) Which of the following is NOT a Protostome animal? Black widow spider Octopus Earthworm Jellyfish All
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20 . All of the above are protostomes.

Protostome clade include the following phylums -

  • Arthropods
  • Molluscs
  • Nematodes

Jellyfish belongs to cnidarias which have both protostomes and deuterostomes but jellyfish is a protostome .

21. Arthropods and nematodes ..

Ecdyzosoa includes arthropods, nematodes and other phyla such as Kinorhyncha,Priapulida,Nematmorpha,Palaeoscolecida ,Loricifera,Panarthropoda.

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