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2 votes
Tom grew three inches in one year. Which organ system was directly responsible for his growth spurt?

A. Respiratory system
B. Digestive system
C. Circulatory system
D. Endocrine system,

2 Answers

7 votes
It would be D! Endocrine system
User Ravi Roshan
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6 votes
D. Endocrine system, specifically the pituitary gland.
User Chazz
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