Through which process is liquid exuded from the uninjured part of a leaf tip?

Leaves having an equal number of stomata on both surfaces are called ........

The process of photosynthesis requires water. The system of xylem vessels from the root to the leaf vein can supply the needed water. But what force does a plant use to move water molecules into the leaf parenchyma cells where they are needed?

Opening and closing of stomata is controlled by

Stomatal opening is regulated by

Identify the $INCORRECT$ statement for '$A$' and '$B$' respectively.