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Science CBSE Homework Assignments
Class 10
Our environment
Food chain and trophic levels
3.
Different trophic levels of the ecosystem
Task:
5
m.
Choose the correct answer
:
1
.
__________ is the branch of biology which deals with the inter-relationship among organisms.
Niche
Ecology
Environment
Ecosystem
2
.
Which among the following is true about food chain?
It does not depict the relationship between producers and consumers
It depicts the relationship between producers and consumers
It is the linear flow of energy between various components of the ecosystem
It describes how an organism obtains energy and nutrients by consuming other organisms
3
.
Which among the following statements is/are incorrect?
Organisms of one trophic level does not have the same food habit
Secondary consumers are lesser in number when compared to the primary consumers
Tertiary consumers are much lesser than the secondary consumers
Secondary consumers are more in number when compared to the primary consumers
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