Q22 of 58 Page 65

During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys

The human body undergoes several changes during adolescence. These changes mark the onset of puberty. The change which is associated with sexual maturation in boys is cracking of voice.

More from this chapter

All 58 →
20

Offspring formed as a result of sexual reproduction exhibit more variations because

 21

Reproduction is essential for living organisms in order to

 23

In human females, an event that reflects onset of reproductive phase is

 24

In human males, the testes lie in the scrotum, because it helps in the