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1 vote
The period in which humans are able to reproduce is marked by the development of _______. A. secondary sex characteristics B. male and female gonads C. aspermia D. amenorrhea

2 Answers

4 votes

I agree, A. secondary sex characteristics

User Tutelage Systems
by
7.7k points
7 votes
The answer is A. secondary sex characteristics. 
User Yariv
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