Increase in rate of breathing is due to the following...? Mcqs

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Increase in rate of breathing is due to the following...?

(A) Increase CO2 in blood

(B) Increase O2 in blood

(C) Decrease CO2 in blood

(D) Decrease O2 in blood

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Root hair is long, thin and tubular structure, it increases surface area which increases the _____...?

(A) Rate of absorption of water

(B) Rate of photosynthesis

(C) Rate of respiration

(D) Rate of growth

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