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12.Ecosystem
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In an ecosystem, there is flow of energy at different trophic levels. This is as follows :
A
Primary consumers — Tertiary consumers — Secondary consumers — Decomposers — Producers
B
Producers — Primary consumers — Secondary consumers — Tertiary consumers — Decomposers
C
Producers — Decomposers — Primary consumers — Tertiary consumers — Secondary consumers
D
Producers — Primary consumers — Tertiary consumers — Secondary consumers — Decomposers
Solution
It’s obvious.
Standard 12
Biology
