3. Different trophic levels of the ecosystem

5 m.

Choose the correct answer:

1. __________ is the branch of biology which deals with the inter-relationship among organisms.

2. Which among the following true about the importance of food chain?

Helps in studying the effect of population reduction or increase at a trophic level
Food chains does not indicate how organisms interact
Effect of non-biodegradable harmful substances can be studied through the food chain
It provides pathway for the passage of food and energy in the ecosystem

3. Which among the following statements is/are incorrect about primary consumers?

Herbivores are lesser in number when compared to the producers
\(90 \%\) of energy is stored in primary consumers and made available to the consumers of the next level
Herbivores are higher in number when compared to the producers
Only \(10 \%\) of the energy is stored in primary consumers and made available to the consumers of the next level

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