An unusual feature of sponge cells is that they _____.

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can grow into complete individuals from fragments broken off from an adult

  

produce toxins to defend against predators and parasites

  

have a life cycle that includes a polyp form and a medusa form

  

can undergo external fertilization

 

asked Dec 29, 2012 in Biology by anonymous
    

1 Answer

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can grow into complete individuals from fragments broken off from an adult

 

answered Dec 29, 2012 by anonymous

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