ICSE Class 8 Answered
In a food chain, trophic levels are defined as the number of steps that are followed by one another in the process of energy flow and are also dependent on each other for food. Different trophic levels are as follows-
i. Producers (Trophic Level-1)- They form the first trophic level and are able to manufacture their own food (green plants).
ii. Primary consumers (Trophic Level -2)- They form the second trophic level and are generally plant eaters (herbivores).
iii. Secondary consumers (Trophic level-3)- They form the third trophic level and are flesh eaters. (carnivores).
iv. Tertiary consumers (Trophic Level-4)- They form the fourth trophic level and feed on secondary consumers.
Role of decomposers in ecosystemThis video explains the significance of decomposers in the ecosystem.
Energy flow in ecosystemThis video deals with the concept of energy transfer in a food chain with t...
Energy Flow in Ecosystem
This video solves a problem based on the concept of energy transfer in a...
This video is a case study question based on the biomagnification and fo...