Why is counter current mechanism essential for concentration of urine? Explain.

Explain the mechanism of hormone action.

Why is it essential to get training of first aid?

What is most essential for propagation of mechanical wave?

Camel excrete concentrated urine. Give reason.

What are the major transport mechanisms for CO_2 transport? Explain.

Explain the mechanism of mineral translocation in plants.

Why is chlorophyll-a called an essential pigment?

Why is solute potential always negative? Explain.

Explain the mechanism of urine formation in detail.

Which one of the following statements can best explain the term critical concentration of an essential element?