Life+functions+in+animals

2.- Types of respiratory systems
 * || Unit 8 Life functions in animals Summary ||
 * || 1.- Nutrition and the digestive system

3.- The circulatory system 4.- The excretory system 5.- The function of interaction: receptors 6.- Systems of coordination 7.- The nervous system 8.- The musculoskeletal system 9.- Reproduction 10.- Fertilization ||
 * || [[file:Life function in animals 2017.ppt]] ||
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