Give two points of importance of transpiration in plants.

Differentiate between macro-nutrients and micro-nutrients with examples.

If vegetables such as brinjals or lady's fingers become somewhat dry and shrivelled, they are put in water. They start looking fresh again, because water enters inside them. In the absence of any opening, how does water enter the vegetables?

In xylem, tracheids and xylem vessels are placed end to end like tubes. How does this help plants?