CST Exam Review Question no. 634 December 16, 2017 By Rana Waqar Leave a Comment The four main factors that affect bone growth are: a. hormones, heredity, nutrition, exercise b. hormones, nutrition, ethnicity, health status c. pollution, exercise, nutrition, age d. hormones, heredity, health status, gender Δ For More questions please join Our facebook group: https://www.facebook.com/groups/1424167527615419/?ref=group_browse_new
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