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Grass leaves curl inwards during very dr...

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:

A

Closure of stomata

B

Flaccidity of bulliform cells

C

Shrinkage of air spaces in spongy mesophyll

D

Tyloses in vessels

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The correct Answer is:
B
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  13. Which of the following statements is true for phloem in plants?

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  14. The chief function of vessels in the plant body is to:

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