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body systems

2020 body systems, 7th grade science, ga, Cousins Middle school

cell smallest unit of life
tissue similar cells working together
organ similar tissues working together : example heart, kidney
organ system a group of organs that work together, example cardiovascualr,
cardiovascuar/circulatory system moves blood, sends oxygen, food and water
excretory system removes waste
respiratory system exchanges gas (oxygen and carbon dioxide)
skeletal system gives shape and protection
reproductive system makes more of a living thing
muscualr system attach to bones, responsible for movement
nervous system sends messages includes brain and spinal cordq
integumentary system first line of protection, includes hair , skin and nails
immune system helps defend against illness, includes white blood cells
endocrine system uses hormones to control longterm body funcitons
Created by: braswelljesi