Question

(a) What are Trophic Levels in a food chain?



(b)Explain the flow Of energy through Food chain.



(c)Write a four Trophic level food chain and represented in the form Of an Ecological pyramid.
​

Answer 1

Answer:

(a)Trophic level, step in a nutritive series, or food chain, of an ecosystem. A separate trophic level, the decomposers or transformers, consists of organisms such as bacteria and fungi that break down dead organisms and waste materials into nutrients usable by the producers.

(b)Energy flow in ecosystem occurs by food chain from producer to consumers. The producers synthesise food and stores the energy from sun. E.g., green plants.Then energy is transfered from producers to consumers, called as heterotrophs. Primary consumers are called as herbivores.

(c)The feeding positions in a food chain or web are called trophic levels.Humans, for example, are primary consumers when they eat plants such as vegetables. They are secondary consumers when they eat cows. They are tertiary consumers when they eat salmon.