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What is the ecological principle behind ...

What is the ecological principle behind the biological control method of managing with pest Insects?

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PSEB-ORGANISMS AND POPULATIONS-EXERCISE
  1. An orchid plant Is growing on the branch of mango tree. How do you des...

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  2. Define the following terms and give one example for each: Commensalism

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  3. What is the ecological principle behind the biological control method ...

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  4. Select the statement which explains best parasitism :

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  5. Distinguish between the following: Hibernation and Aestivation

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  6. List any three important characteristics of population and explain the...

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  7. Distinguish between the following: Ectotherms and Endotherms

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  8. Write a short note on: Adaptations of desert plants and animals

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  9. Write a short note on: Adaptations of desert plants and animals

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  10. Write a short note on: Adaptations of plants to water scarcity

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  11. Write a short note on: behavioural adaptations in animals

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  12. Write a short note on: Importance of light to plants

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  13. Write a short note on: Effect of temperature or water scarcity and th...

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  14. List the various abiotic environmental factors.

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  15. Give one example of endothermic reaction

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  16. Give one example of endothermic reaction

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  17. Give one example of endothermic reaction

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  18. Give an example for: An organism of benthic /one

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  19. Define population and community.

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  20. Define the following terms and give one example for each: Commensalism

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