In which form$(s)$ does water exist in nature?

Explain: The direction of transport in plants.

Water is indispensable for life. What properties of water make it useful for all biological processes on the earth?

Water infiltration will be slowest in

Consider the following statements and choose the correct answer from the options given below:
$I$. $A$ dry live seed still contains water.
$II$. $A$ mature maize plant absorbs about $3 \ L$ water per day.
$III$. $A$ mustard plant takes up water equal to its weight in about five hours.
$IV$. Water is not considered as the limiting factor for plant growth and productivity.

What are the types and functions of aquaporins?