Question

Distinguish between primary and secondary productivity.

Answer 1

The product which is made from raw materials is known as primary productivity

the product which is made by primary products It is known as secondary product

Answer 2

Primary and Secondary productivity:

Productivity is the amount of total production of new biomass in an ecosystem.

Productivity is classified broadly into two categories:

• Primary productivity – It is defined as the total production of new biomass by the autotrophs or mainly the plants and photosynthesizing bacteria.
• Secondary productivity – It is defined as the total biomass produced by the heterotrophs or the consumers of the ecosystem.
• Primary productivity is mainly synthesized from raw materials like water and carbon dioxide and ammonia or nitrogen salts.
• But, secondary productivity is mainly the metabolized product of primary productivity.