1.

The dramatic changes in body features associated with puberty are mainly because of the secretions of: A) Thyroxine B) Estrogen C) Adrenaline D) Testosterone A. A and B B. B and C C. A and C D. B and D

Answer»

D. B and D 

Estrogen and testosterone are sex hormones which involved in the development and control of the reproductive organs and secondary sexual characteristics.



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