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Question
Draw a diagram showing human foetus within the uterus and label any four, parts in it.
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Solution
Foetus developing in the uterus
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Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to preganancy.
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Which external genital structures become distinguishable and well-developed by the end of 12 weeks?
