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ScienceClass 8CBSE
Q

Given below are events that lead to pregnancy and development of embryo. i)Fertilization of egg ii)Maturation of egg iii)Release of egg iv) Embedding of embryo in thickened uterine wall. Which of the following options gives the correct order of sequence in which they occur? (a) i, ii, iii, iv, (b) ii, i, iii, iv (c) i, iv, ii, iii ii, iii, i, iv

A

Answer is (d) ii, iii, i, iv

Explanation:

Sequence of events are as follows .

  1. Maturation of egg after puberty
  2. Release of egg cell
  3. Fertilization of egg by sperm to form zygote
  4. Repeated division of zygote to form embryo
  5. Embyro gets embed in the wall of uterus for further
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