Biology · Transportation in Animals
Fill in the blanks with appropriate words: (a) ______ have thin walls and (b) ______ have thick elastic walls. Blood flows at high pressure in (c) ______. Valves are present in (d) _______ that help the blood to flow only in one direction.
- 1(a) - Veins, (b) - Arteries, (c) - Arteries, (d) - Veins✓
- 2(a) - Veins, (b) - Arteries, (c) - Arteries, (d) - Arteries
- 3(a) - Veins, (b) - Arteries, (c) - Veins, (d) - Arteries
- 4(a) - Arteries, (b) - Veins, (c) - Arteries, (d) - Veins
Correct answer
(a) - Veins, (b) - Arteries, (c) - Arteries, (d) - Veins
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