How does water enters the sieve tube from adjacent cells?

How does water take part in soil formation ?

Answer the following question: How are the cancer cells different from normal cells?

The stomatal pore is grarded by two kidney shaped guard cells. Name the epidermal cell surrounding the guard cells. How does a guard cell differ from an epidermal cell? Use a diagram to illustrate your answer.

How does a voltmeter differ from a galvanometer?