ecosystem

the ecosystem is a self regulatory snd self sustaining

vertical distribution of diff species occupying diff levels of vegetation is?

stratification

rate of conversion of light energy into chem energy of organic molecules in an ecosystem?

gross primary productivity

biomass made available by producer for consumption by herbivores & decomposers?

net primary productivity

what is the rate of production of organic matter by consumers?

secondary productivity

rate of production of new organic matter by rabbit in a grassland is ?

secondary productivity

primary productivity depends upon?

light, temp, water, nutrients, photosynthetic capacity

annual net primary productivity of the whole biosphere is approx?

170 billion tons

most productive ecosystem?

tropical rainforest

productivity at 2nd tropic level is always

less than productivity at the first trophic level