The animal population becomes too large for its feeding source or its habitat, its members starve die but humans escape this disaster by

What is the function of copper $-T$ ?

A national level approach to build up a reproductively healthy society was taken up in our country in:

$A$ : Gossypol inhibits spermatogenesis.
$R$ : Centchroman inhibits ovulation

The aggregate of process that determine the size and composition of any population is called