Name the two fundamental trophic levels and describe the general make up of each.

Name three fundamental particles which make an atom.

Define the trophic levels and mention the organisms that occupy in each trophic level.

At each trophic level the energy value :

At each trophic level the energy value :

Give two examples of third trophic level organisms

A diagrammatic representation of different trophic levels in an ecosystem is given below Give example of the organism for each trophic level either from aquatic or terrestrial ecosystem.

What is the difference between the food habits of organisms belonging to the first and the third trophic levels ? Give one example each of the organisms belonging to these two trophic levels.