Calcium deficiency affects the
A. skeletal system
B. circulatory system
C. nervous system
D. All of these
Answer: Option A
A. skeletal system
B. circulatory system
C. nervous system
D. All of these
Answer: Option A
Vitamins and minerals help in . . . . . . . .
A. protection
B. repair
C. giving energy
D. maintenance of health
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