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What are planktons ?...

What are planktons ?

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LAKHMIR SINGH & MANJIT KAUR-OUR ENVIRONMENT-Exercise
  1. Why are plants called producers?

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  2. What name has been given to those organisms which break down the compl...

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  3. What are planktons ?

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  4. State whether the following statements are true of false: (a) In bio...

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  5. Which category of organisms forms the starting point of a food chain ?

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  6. Which of the following belong to the same trophic level ? Goat , Spi...

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  7. Which of the following belong to the same trophic level ? Tree , Fro...

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  8. Write an aquatic food chain.

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  9. Name the organisms belonging to the second and the fourth trophic leve...

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  10. What are the various steps of food chain called ?

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  11. Construct a food chain comprising the following : Snakes, Hawk, Rats...

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  12. Arrange the following in a food chain : Fish, Algae, Small animals, ...

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  13. Which organisms belong to third and fourth trophic levels in the food ...

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  14. Which one term in the following includes the others ? air, flora, f...

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  15. A food chain represents a unidirectional flow of X. What is X ?

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  16. Fill in the following blanks with suitable words : (a) Decomposer or...

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  17. Explain the terms 'producer' and 'consumer'. Give two examples for pro...

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  18. (a) Define decomposers. Name one decomposer. (b) What is the role of...

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  19. What is meant by a primary consumer, secondary consumer and a tertiary...

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  20. Give an example of a four step food chain operating in grassland. Name...

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