Biome is

A. a part of the earth and its atmosphere which inhabits livings organisms

B. a community of organisms interacting with each other

C. the fauna and flora on land

D. the fauna and flora on ocean

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  1. The most widespread form of symbiosis in nature is
  2. The source of energy in an ecosystem is
  3. Synecology is the study of
  4. Which one is the direct ecological factor ?
  5. The main cause of soil erosion in India is
  6. Trophic levels are formed by
  7. Gas liberated in Bhopal gas tragedy was
  8. Which of the following is normally not an important atmospheric pollutant
  9. When a big fish eats a small fish, which eats water fleas supported by phyto-plankton, the water-fleas…
  10. Silent valley of Kerala is preserved because
  11. A food-chain consists of
  12. Strontium- 90 can cause
  13. Bio tic factors are
  14. Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
  15. The first fish that eats upon the planktonic form is
  16. All the living organisms on earth constitute
  17. Animals which live at the bottom of the sea are called
  18. The soils transported by water are called
  19. Birth rate under ideal conditions is known as
  20. An organism which lives at the expense of another organism is called
  21. The term "ecosystem" was first proposed by
  22. The whale is
  23. In a food-chain, the saprophytic organisms are
  24. Which of the following is an anti-forest conservation activity ?
  25. A pond is
  26. Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi
  27. The total interacting animals and plants in any well defined area which as field or a pond is known…
  28. Synecology is the study of
  29. One always finds many more of the prey species than of the predator. This is called a
  30. The transitional zone where two different types of communities meet is called the