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Part 8: The Living Environment Reproduction and Development Review
  1. Protists can reproduce asexually by , and simple animals can reproduce by .
     
     
     
     
  2. Some animals can also reproduce by , where offspring are produced from eggs.
     
     
     
     
  3. Sexual reproduction occurs when male and female fuse by to form a .
     
     
     
     
  4. Some species exhibit , where one individual contains both male and female organs.
     
     
     
     
  5. Sex in mammals is determined by the presence of the gene on the chromosome.
     
     
     
     
  6. Animals evolved in the where fertilization occurs , except cartilaginous fish such as .
     
     
     
     
  7. Amphibians such as and salamanders have both aquatic and terrestrial stages in their life cycle. but must lay eggs in .
     
     
     
     
  8. Internal fertilization reduces of gametes and of embryos.
       
       
       
       
    • Most reptiles (including birds) are and lay amniotic eggs.
       
       
       
       
    • Guppies and boa constrictors are : the young develop within eggs that remain within the mother's body.
       
       
       
       
    • Almost all mammals are , giving birth to live young.
     
     
     
     
  9. Among mammals (animals with glands), are the only clade that is and lays eggs.
     
     
     
     
  10. are but fetuses complete development in mother’s pouch. finish fetal development in the .
     
     
     
     
  11. In human males, sperm is produced in tubules of the testes in a process called .
     
     
     
     
  12. Female gametes develop in the from in a process called . 
     
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
    
 
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