Distinguish between: Primary and secondary productivity

Define ecological succession. List any two characteristics of it. Distinguish between primary and secondary succession.

Distinguish between :(ii) Primary and secondary lysosomes.

Distinguish between primary, secondary andtertiary alcohols by chemical test.

Distinguish between solubility and solubility product.

Differentiate primary productivity and secondary productivity.

How are productivity, gross productivity, net primary productivity and secondary productivity interrelated?