1) Which system sends messages to the brain a) muscular system b) digestive system c) respiratory system d) nervous system e) circulatory system 2) What is the name of the system that digests food a) nervous system b) digestive system c) respiratory system d) circulatory system e) mascular system 3) what is the name of the system that helps us to breathe a) circulatory system b) skeletal system c) respiratory system d) digestive system 4) which do you use to move? a) mascular system b) digestive system c) circulatory system d) respitory system e) nervous system 5) How long does it take to chew and break down food in your mouth? a) 2 days b) 5 hours c) 5 - 30 seconds d) 3 - 4 hours e) 18 hours to 2 days

Animal systems

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