Question

. (a) Name the organisms which belongs to first and third trophic level in food chain comprising of the following:
Insects, birds, frog and grass.
(b) What will happen if we kill all the organisms in one trophic level?

Answer 1

a) Grass will be the first tropic level. Frog will be the third tropic level

(b) If we kill all the organisms of one trophic level, it will lead to an increase in the number of organisms at the lower trophic level and decrease in the number of organisms at the higher trophic level. This will result in disruption in the food web and hence the ecosystem.