Question

Which of the statements is correct regarding food chain?
A. Passage of food from one trophic level to the next higher one.
B. Passage of energy from one trophic level to the next higher one.
C. Dissipation of energy at successive trophic levels.
D. All of the above

Answer 1

Hint: A food chain is a part of an ecosystem or it is a linear network of food web initiated from producer organisms and terminated at apex predator species detritivores or decomposer species. A food chain relates the organisms with each other by the food they eat. Every level of food chain represents a various trophic level.

Complete Answer:
- Food chains coined by the Arab scientist and philosopher Al-Jahiz in the 10th century.
- A food chain differs from a food web because animals having a very complex network on the other hand the chain only follows a linear pathway. Natural interconnections between food chains make it a food web.
- Food chains are very essential for the living of most species if only one thing is eliminated from the food chain it can result in extinction of a species in some cases.
- Producers like plants are organisms that use solar or chemical energy to form starch.
- Food chains initiate with producers. A producer uses both solar energy and chemical energy to convert organisms into usable compounds.
- The organisms which eat others are known as the Consumers. All participants in a food chain are consumers except the first those produce.

So, the correct answer is all of the above.

Note: Food chain in other words it is the passage of food from one trophic level to the next higher trophic level as well as energy also transferred and results of this is dissipation of energy at successive trophic levels.