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Q. Arrange the following stages of human development in chronological order:
  1. Foetus
  2. Zygote
  3. Embryo
Which of the following is the correct sequence?
Answer: 2-3-1
Notes: The correct order is: first, a zygote forms after fertilization; next, the zygote develops into an embryo; finally, the embryo matures into a foetus. Thus, the chronological sequence is Zygote (2), Embryo (3), and Foetus (1), corresponding to option 2-3-1.
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📌 Question Number: 152 in Human Biology –Evolution, Anatomy, Immunobiology & Physiology in the above course in App.