protostome 

  1. 名詞
原肢類
/此名詞複數為"protostomes"/

    
                        
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例句

                

                    
    
                                                    
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                                Protostome radiations                            
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                                Gastrulation in protostome and deuterostome embryos.                            
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                                Even if it is not a protostome , it is widely accepted as a bilaterian.                            
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                                Development of the eggs is a mixture of deuterostome and protostome characteristics.                            
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                                Further protostome diversification led to a plexus of annelids, molluscs and near relatives.                            
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