Degradation of proteins play a part in
Calvin cycle
Water cycle
Sulphur cycle
Nitrogen cycle
Phosphorus is major constituent of
$(1)$ Biological membranes
$(2)$ Nucleic acid
$(3)$ Cellular energy transfer system
$(4)$ Protein synthesis
Simplified model of phosphorus cycling in a terrestrial ecosystem is given below. Identify $A, B, C$ and $D$
Write important features of a sedimentary cycle in an ecosystem.
Maximum productivity is found in
Which of the following is present in maximum amount in atmosphere