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BIOLOGY, M5 2020 HSC 3 MC

The following four events occur during reproduction in a placental mammal.

  1. Fertilisation
  2. Implantation
  3. Ovulation
  4. Placental formation

In which order do these events occur?

  1. 2, 1, 3, 4
  2. 2, 4, 1, 3
  3. 3, 1, 2, 4
  4. 3, 2, 4, 1
Show Answers Only

`C`

Show Worked Solution

→ Ovulation (the production of the female gamete) must occur first, followed by fertilisation of the gamete.

→ Once it is fertilised, it implants itself in the uterine wall, followed by the formation of the placenta.

`=>C`