1) The system that supports and protects our organs a) Digestive system b) circulatory system c) respiratory system d) Skeletal system 2) The system that breaks down food & absorbs nutrients a) skeletal system b) respiratory system c) digestive system d) urinary system e) Muscular system f) circulatory system 3) The system that transports oxygen and nutrients to all body organs a) circulatory system b) reproductive system c) respiratory system d) digestive system 4) The smallest building unit of any body is a) organ b) organ system c) cell d) Tissue 5) Many cells can connect together to form our a) organ system b) tissues 6) The system that controls sensation, movement and body activities a) respiratory system b) nervous system c) skeletal system d) brain 7) The system that is responsible for taking in oxygen and releasing waste gases a) respiratory system b) circulatory system c) nervous system d) muscular system e) skeletal system f) digestive system 8) The system that helps us to move a) respiratory b) muscular system 9) What are the main parts of the circulatory system? a) The heart, the lungs & the blood b) the heart, the blood & the blood vessels c) oxygen, water & nutrients 10) what is the main function of the circulatory system? a) to support our body b) to deliver oxygen, water and nutrients around the body

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