Which of the following habitats is most unsuitable for primary productivity?

Justify the following statement in terms of ecosystem dynamics: "Nature tends to increase the gross primary productivity, while man tends to increase the net primary productivity".

Which of the following represents the amount of energy available to a grasshopper in a food chain?

The biomass available to herbivores and decomposers is known as:

The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called:

Net primary productivity is utilised by