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Answer Key
Grade 6 Science: Human Body Systems Interactions
1.
system
2.
digestive
3.
circulatory/cardiovascular
4.
respiratory
5.
skeletal/muscular
6.
nervous
7.
mouth
8.
arteries
9.
a group of organs that work together to perform major body functions
10.
digested nutrients are absorbed into blood and delivered to cells
11.
lungs add oxygen to blood; blood carries oxygen to body cells
12.
sends signals between brain, spinal cord, and body to control responses
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