ICSE Class X Biology 2015 Solved Papers
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The diagrams given below are cross sections of blood vessels :
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Question : 64
Total: 98
Name the parts labelled 1 to 3.
Solution:
1. Connective tissue layer/Tunia externa,
2. Lumen,
3. Muscular layer / Tunia interna.
2. Lumen,
3. Muscular layer / Tunia interna.
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