What is chloride shift and why does it occur ?

What is respiration ? How does it occur ?

Why does cretenism occur?

What is photosynthesis and where in a cell does it occur?

What is normal heart beat in man? How does it occur?

Who discovered TCA cycle ? Where does it occurs ?

(a) What is photosynthesis and where in a cell does it occur? (b) How can menstrual hygiene be maintained during menstrual days?

Meiosis does not occur in