- AForests
- BAlgae and Phytoplanktons
- CCrops
- DNone of the above
Explanation:
Biomass is the organic matter obtained from the living organism which act as a source of energy. In a biomass pyramid, the trophic levels are sequentially arranged at the trophic level according to the biomass at each level. The bottom of every pyramid is made up of autotrophs ( producers). In ocean, the phytoplanktons and algae are the primary producers of the marine food chain.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I.$ The total organic matter synthesised by the producers in the process of photosynthesis per unit time and area is known as gross primary productivity
$II.$ Net primary productivity is the weight of the organic matter stored by the producers in a unit area/volume per unit time