Question

(a) Which of the following belong to the same trophic level?
Grass, Hawk, Rabbit, Frog, Deer
Give reason for your choice.
​(b) What is the difference between the food habits of organisms belonging to the first and third trophic levels. Give one example each of the organisms belonging to first and third trophic levels.

Answer 1

(a) Rabbit and deer belong to the same trophic level. Both are herbivores and occupy the second trophic level.

(b) First trophic level is occupied by plants whereas third trophic level is occupied by carnivores or secondary consumers.
Plants are autotrophic in nature i.e. they can produce their own food and thus are also called producers. Example: plants
Whereas organisms which occupy the secondary trophic levels are called consumers. These organisms are meat eaters and depend on other organisms for their food needs. Example: tiger