define
WHAT HAPPENS IF
100
what is a circulatory system?
Uses blood and blood vessels to move oxygen and nutrients to the cells.
100
what happens if the endocrine system stops?
The reproductive system will not produce offspring.
200
What is the respiratory system?
carries oxygen into the lungs, where it is transferred to the blood.
300
What is the digestive system
the system in which food is turned into nutrients.
400
what is the reproductive system?
it produces offspring
500
what is the excretory system?
the system in which waste is moved out of the body.
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