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CBSE - X - Biology - How Do Organisms Reproduce?

Answer the following question

Asked by nkrbasak 16th February 2011, 3:58 PM
Answered by Expert


Dear student,
In girls - Breast size begins to increase. Skin of nipples at the tips of breasts begin to darken. Also, girls begin to menstruate at around this time.
In boys - Boys begin to have new thick hair growth on the face, their voices begin to crack, the penis occasionally begins to become enlarged and erect, either in daydreams or at night.
Regards, Team Topperlearning
Answered by Expert 17th February 2011, 9:24 AM

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