Fossils of organisms from the Precambrian are extraordinarily rare, but many species are found in the Burgess Shale deposits. Which of the following best describes the Burgess Shale organisms?

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primarily sponges, algae, and seaweeds

  

arthropods, mollusks, chordates, and a variety of soft-bodied organisms

  

mostly bacteria and simple one-celled plants and animals

  

jellyfish and sponges, along with some tracks of various other organisms

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

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arthropods, mollusks, chordates, and a variety of soft-bodied organisms

 

answered Dec 28, 2012 by anonymous

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