blastula 

  1. 名詞
囊胚
/此名詞複數可為"blastulas"或"blastulae"/

    
                        
    2. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                And then the blastula undergoes gastrulation.                            
    2. 
                                                    
  2. 
                                Most starfish embryos hatch at the blastula stage.                            
    3. 
                                                    
  3. 
                                The blastula develops from a spherical cluster of cells called a morula.                            
    4. 
                                                    
  4. 
                                In others, normal segmentation occurs in the blastula but gastrulation fails.                            
    5. 
                                                    
  5. 
                                After the 7th cleavage has produced 128 cells, the embryo is called a blastula .                            
    6.