"Transpiration is a necessary evil”, this Statement belongs to

Oxygen is necessary for -

Least cuticular transpiration is relatively observed in

What is responsible for the transpiration stream in very tall plants like Red wood?

Describe transpiration pull model of water transport in plants. What are the factors influencing transpiration? How is it useful to plants?

Explain why friction is necessary to make the disc in fig. roll in the direction indicated. What is the force of friction after perfect rolling begins?

does fertilization is necessary for organisms?

Explain why friction is necessary to make the disc in fig. roll in the direction indicated. Give the direction of frictional force at B. and the sense of frictional torque before perfect rolling begins.

Transpiration is the loss of water from