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12.Ecosystem
medium
The order of organism in an aquatic food chain is
A
Bacteria $→$ Seal $→$ Diatom $ →$ Fish $→$ Crustacea
B
Crustacea $→$ Seal $→$ Fish $→$ Polar Bear $→$ Diatom
C
Polar Bear $→$ Diatom $ →$ Seal $→$ Crustacea
D
Diatom $→$ Crustacea $→$ Fish $→$ Seal $→$ Bacteria
Solution
(d)Diatoms are producer, crustacea is primary consumer, fish is secondary consumer, seal is top consumer and bacteria are decomposers.
Standard 12
Biology
