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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The prepubertal period refers to a stage of

The eggs of a rabbit and a human are:

Match the columns.
Column $I$ Column $II$
$(a)$ Corpus luteum $(1)$ Initially in abdominal cavity then in scrotum
$(b)$ Testis $(2)$ At the anterior part of scrotum in male
$(c)$ Myometrium $(3)$ Graafian follicle
$(d)$ Penis $(4)$ Uterus

Approximately how many ova are released during the reproductive life cycle of a human female?

Select the correct option from the following.

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