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Reproductive System - Coggle Diagram

- - - - except testes + associated ducts
- - - - presence of testes in abdomen
        
        testes produce normal male levels of testosterone
        
        target cells lack receptors for it
      - karyotype of XY chromosomes
- - - - Gametes
        
        gamete w/ motility
        
        Sperm (Spermatozoon)
        
        gamete w/ nutrients for embryo dev.
        
        Egg (Ovum)
        
        form a fertilized egg, called the:
        
        Zygote