Question

An aquatic food chain comprises of the organisms like tadpoles, weeds, fish and water beetles. The organism which gets the minimum energy through this food chain is:​

• A. Water beetles
• B. Fish
• C. Tadpoles
• D. Weeds

Answer 1

The correct option is B Fish

Arranging the given organisms in a food chain we get - ​

Weeds → water beetles → tadpoles → fish​

• According to the ten percent law, only 10% of the energy is available to the organism in the succeeding trophic level.​

• Hence, the least amount of energy is received by the highest trophic level.​

• In this case, fish being the highest trophic level will get the minimum energy.​