Ecosystem Questions

Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks....

If 20 J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain? Plant → Mice → Snake → Peacock...

The major cause of extinction of species in tropical countries is

Net community productivity (NCP) is the

Which ecosystem has the maximum biomass

Which one of the following is a characteristic feature of cropland ecosystem?

The term ecosystem was coined by:

What type of ecological pyramid would obtained with the following data ? Secondary consumer : 120 g Primary consumer : 60 g Primary producer : 10 g

Secondary productivity is rate of formation of new organic matter by :

Indentify the likely organisms (a), (b) (c) and (d) in the food web shown below...

The second stage of hydrosere is occupied by plants like

The rate of formation of new organic matter by rabbit in a grassland, is called

Identify the possible line ″A″ in the following food chain : Plant → insect → frog → ″A″ → Eagle

The upright pyramid of number is absent in

Given below is an imaginary pyramid of numbers. What could be one of the possibilities about certainorganisms at some of the different levels ?...

Which one of the following is not a functional unit of an exosystem ?

Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?

Which one of the following statement is correct for secondary succession ?

Which one of the following statements for pyramid of energy is incorrect, wheares theremaining three are the correct ?

Mass of living matter at a trophic level in an area at any time is called