In food chain or food web which one is more stable. Justify your answer.

A food web

Define food web.

The combination of food chains form a food web. Which organism is the secondary consumer in the given options?

Between galvanized iron containers and tinned iron containers which are used to preserve food material ? Justify your answer.

Differentiate between food chain and food web with one example.

(a) How is energy introduced into the ecosystem ? (b) Consider the following food chains : (i) Plants to Mice to Snakes to Hawks (ii) Plants to Mice to Hawks If energy available at the producer level in both the food chains is 100 J, in which case will hawks get more energy as food and by how much ? Justify your answer.