Explain the flow of energy through a food chain operating in a grassland ecosystem having four trophic levels with the help of a diagram
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Answer:
a) The food chain is the sequence of population or organisms through which food and its contained energy pass in an ecosystem with members at one step becoming the food of later step of the sequence.
b) In the food chain, the green plant (grass) is the primary producer which makes the food by trapping the light energy from sunlight with the help of chlorophyll pigment. The grasshopper (insect) is the primary consumer because they directly consume the green plant. The bird is the secondary consumer because it eats the grasshopper. The snake is the tertiary consumer which feeds on the bird.
c) The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. There is a flow of energy from one trophic level to the other in a food chain. Producers bring energy from the sun into the community. Primary consumers eat the producers, which makes them herbivores in most communities. Secondary consumers eat the primary consumers, which makes them carnivores. Tertiary consumers eat the secondary consumers. A final link in the food chain are decomposers, which break down the organic matter of the tertiary consumers (or whichever consumer is at the top of the chain) and release nutrients into the soil. Thus, there is flow of energy from Sun ------> Producer ------> Herbivore -------> Carnivore ------> Decomposers
Answer:
The trophic level of an organism is the place it has in a food chain. A food chain is mostly made up of three trophic levels. However, some trophic levels have four trophic levels. An example is shown in the diagram.
→Primary producers which are plants that are autotrophs and belong to the first trophic level.
→Primary consumers are animals that belong to second trophic level and feed on plants. They are called herbivores.
→Secondary consumers feed on herbivores and belong to the third trophic level. They are called primary carnivores.
→Tertiary consumers feed on primary carnivores and belong to the fourth trophic level. They are called secondary carnivores.
solution
Explanation:
Sorry diagram nor available