The changes that occur in females at the onset of puberty are:

  • A
    The enlargement of breasts
  • B
    Beginning of the menstrual cycle
  • C
    Stoppage of growth of long bones and height
  • D
    All of the above

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Similar Questions

If the nuclei from an $8$-celled stage of an embryo are transplanted into enucleated eggs,which of the following events is likely to occur?

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Match the columns.
Column $I$Column $II$
$(a)$ Testis and ovary$(1)$ Part of reproductive organ that transports germ cells
$(b)$ Clitoris$(2)$ Developing fleshy fold surrounding both sides of the urogenital groove
$(c)$ Oviduct$(3)$ Gametes which produce germ cells
$(d)$ Scrotum,labium majora$(4)$ Organs associated with sexual response

Identify the parts $a, b, c,$ and $d$ in the given diagram of the human mammary gland.

The age of puberty in females is........

Differentiate between the following:
$1.$ External reproductive characteristics of male and female.
$2.$ Internal reproductive characteristics of male and female.

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