The total interacting animals and plants in any well defined area which as field or a pond is known as

A. biosphere

B. biome

C. community

D. ecosystem

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  2. The most polluted city in the world is
  3. The first fish that eats upon the planktonic form is
  4. One always finds many more of the prey species than of the predator. This is called a
  5. Silent valley of Kerala is preserved because
  6. Strontium- 90 can cause
  7. Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
  8. Gas liberated in Bhopal gas tragedy was
  9. The most widespread form of symbiosis in nature is
  10. The total interacting animals and plants in any well defined area which as field or a pond is known…
  11. The term "ecosystem" was first proposed by
  12. The energy storage of consumer level is called
  13. In a food-chain, the saprophytic organisms are
  14. Desert animals are called
  15. Which of the following is an anti-forest conservation activity ?
  16. A pond is
  17. Some animals have a constant high body temperature. This is because
  18. Species that occur in different geographical regions separated by special barriers are
  19. In an ecosystem the population of
  20. When compared to the trophic level above, the total energy present in any given trophic level is necessarily
  21. Trophic levels are formed by
  22. The transitional zone where two different types of communities meet is called the
  23. Bio tic factors are
  24. An association between two or more species in which both are benefited is known as
  25. Which is the correct sequence in a food-chain
  26. Animals which live at the bottom of the sea are called
  27. Smog is a combination of
  28. Birth rate under ideal conditions is known as
  29. Ultra-violet radiation from sunlight causes the reaction that produce
  30. Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi