Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Biology Anatomy of Plants Anatomy of Dicot and Monocot Plants
Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following :
1
Closure of stomata
2
Flaccidity of bulliform cells
3
Shrinkage of air spaces in spongy mesophyll
4
More than one of the above
5
None of the above