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Subjects
Science CBSE
Class 10
Our environment
Ecosystem and energy flow
2.
Different trophic levels and food chain
Exercise condition:
2
m.
Choose the correct answer
:
1
.
A __________ is the linear flow of energy between various components of the ecosystem.
food chain
ecological pyramid
trophic level
2
.
The __________ are present at the first trophic level.
primary consumers
autotrophs
secondary consumers
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