Question

Tree ecosystem is an example of:
A. Grazing Food chain
B. Detritus Food Chain
C. Both 1 and 2 above
D. Parasitic Food chain

Answer 1

An ecosystem is a place where a living organism stays and interacts with other living and non-living organisms. Depending on the place ecosystem can be a terrestrial ecosystem, forest ecosystem, marine ecosystem, desert ecosystem. The food chain is the network starting from producers to the predators, detritivores.

Complete answer:
The food chain is divided into two types: the grazing food chain and the detritus food chain. The grazing food chain starts with autotrophs i.e. producers. The detritus food chain starts with dead organic matter. Trees are the primary producers of the ecosystem. By utilizing the sunlight they carry out the process of photosynthesis and produce food in the form of glucose. Several consumers feed on the plant like that of the grasshopper, rabbit, caterpillars these are primary consumers. When primary consumers feed on trees they become part of the grazing food chain. The process of photosynthesis i.e. production of carbohydrates with the help of sunlight takes place in the leaf. When the leaf matures it turns yellow and falls off the tree and is dead organic matter. Several decomposers feed on this dead organic matter and thus, trees also become part of the detritus food chain.

So, the correct answer is Option C, i.e., Both 1 and 2 above.

Note: The food chain is a linear pathway that varies from the food web. The food web is an interconnected food chain. The food web improves the adaptability of an organism. In a food chain, the energy flows in a unidirectional way from producers to consumers at each trophic level.