Question

there is evidences of fatal science among chordates​

Answer 1

Answer:

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Answer 2

Answer:

• Von  Baer studies  the  embryo  development  in  different  vertebrates.  
• The vertebrates include  Fish,  Frog,  Tortoise,  Pigeon,  Chimpanzee  and  Man.  
• The  early stages of  embryos development  of  above  animals close  are similarity  with  each  other.  
• It is difficult to  separate  them  if  the  embryos were mixed.  
• But  the  embryos differ in  the final stages  due  to  the  formation  of  specialized  characters.  
• The  similarity  of  early embryonic development  indicate  that  the  above  animals  have  common  ancestors.