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Question
Explain the process of development in human beings.
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Solution
Development:
- Fertilisation results in the formation of zygote.
- The zygote divides and redivides to form a ball of cells called blastocyst.
- The blastocyst gets implanted on the wall of the uterus and forms the embryo.
- The embryo obtains all the nourishment and oxygen from the mother’s blood.
- A structure called placenta present in the uterus supplies all the necessary nutrients to the embryo through the umbilical cord.
- The development of the foetus takes place for nine months
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