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

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

At each trophic level the energy value :

Name two foods each rich in: Fats

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.

[A] : Energy pyramid is sloping . [R] : The energy of one trophic level is lower than another level as we go up .

What is food chain ? Describe all trophic levels of a food chain with the help of examples.

A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it . (a) Write a food chain comprising all the four organisms mentioned above. (b) Name (i) one herbivore, and (ii) two carnivores, in this food chain. (c) Name the link which is a predator as well as a prey. (d) Name (i) second trophic level, and (ii) third trophic level. (e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently ? (f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.