What is lever?

What is alternation of generation. What are the significance ?

What is Ogive? What are its uses?

What is development ? What are direct and indirect developments ?

What is electron transport system? What are the site of respiration?

What is heterosis? What are the uses Is plant breeding?

What is environmental chemistry? What is environmental pollution?

What is Chloriosis? What is responsible for it?

What is nephrosis? What is the cause of it? What are the symptoms of the disease? What the principle of diet given to a patient of nephrosis.

What is colourblindness? What are the symptoms of thalassemia?