Phosphorus is the major constituent of
$I.$ biological membranes
$II. $ nucleic acids
$III.$ cellular energy
Choose the correct option
$Only\; I$
$Only \;II$
$Only \;III$
$All \;of\; these$
Degradation of proteins play a part in
Which of the following ecosystem has the highest gross primary productivity
The word ‘‘ecosystem’’ was first coined by
Climax vegetation of a region is generally
Biomass produced by plants in oceans accounts for