Question

Construct an aquatic food chain showing four trophic levels . " Energy flow in a food chain is unidirectional" . Justify.

Answer 1

Answer:

hii!!

here is ur answer!

energy flow in a food chain is unidirectional because if we take a example

grass ------> rabit -----> fox -------> tiger

let this be the food chain

here rabit eats grass thus energy is flown into rabbit from grass as it has eaten grass. but it can't be reversed because grass can't eat rabit.

Aquatic food chain

shark<----- fish<----zooplankton<---pytoplankton

help others!

Answer 2

Energy flow in a food chain is unidirectional because if we take a example grass ------> rabit -----> fox -------> tiger

let this be the food chain here rabit eats grass thus energy is flown into rabbit ate grass thus energy is flown into rabbit from grass as it has eaten grass. but it can't be reversed because grass can't.

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