ICSE Class X Biology 2020 Solved Papers

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The diagram given below is that of a developing human foetus.
Answer the questions that follow :

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Question : 94
Total: 97
Mention any two functions of the part labelled 2 in the diagram.
Solution:  
Functions of Part 2 (Placenta) :
1. It helps to transfer oxygen and nutrients from mothers blood to foetus by diffusion.
2. It acts as an organ of excretion i.e. transfer CO2 and other metabolic wastes from foetus to mother's blood by diffusion.
3. Placenta also acts as an endocrine gland and produces the female sex hormones like oesterogen and progesterone.
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