A. VERY SHORT ANSWER QUESTIONS (VSAQ) :
1. How is heart beat measured by doctors ?
2. Why are arteries thick walled whereas capillaries are thin walled ?
3. Why is pumping of blood by heart referred to as double circulation ?
4. Transpiration is the price paid by plants for photosynthesis". Explain.
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Answer:
1 answer = The doctor measured the heart beat by stethoscope.
Explanation:
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