Biology, 13.03.2021 01:00 lolfunny124

A student comes to school and eats breakfast before going to class. Eating breakfast gives the student sufficient energy to handle her classes. What two body systems work together to provide the student’s cells with energy?
A.  Excretory and endocrine
B.  Digestive and circulatory
C.  Digestive and excretory
D.  Excretory and circulatory  

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