Q9 of 56 Page 220

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

The cracking on voice in boys is due to the growth of voice box or larynx which can be seen as a protruding part of throat called Adam’s apple.

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Offspring formed as a result of sexual reproduction exhibits more variations because:

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Reproduction is essential for living organisms in order to:

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

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In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called: