Question

food chain consists of several organisms suppose one of the organisms is the chain disappeared what effect can this have on the other organisms in food chain?
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Answer 1

If one of the organisms in the food chain disappears, then the organisms in the next trophic level dependent on these organisms will die due to unavailability of food. The population of organisms in the previous trophic level will increase.

For example - In a food chain: Plants --->Rats ----> Snakes ---> Owls

If all the snakes are killed, the owls which eat snakes will die and the population of rats will increase.

Answer 2

As Food chain is a chain of dependency of organisms on others for food if any of them misses the chain the other dependent organism cant survive any more.