The most widespread form of symbiosis in nature is

A. mutualism

B. commensalism

C. predatism

D. parasitism

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  1. The source of energy in an ecosystem is
  2. Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
  3. Synecology is the study of
  4. The transitional zone where two different types of communities meet is called the
  5. Which one is the direct ecological factor ?
  6. Biome is
  7. Silent valley of Kerala is preserved because
  8. The total interacting animals and plants in any well defined area which as field or a pond is known…
  9. A food-chain consists of
  10. The term "ecosystem" was first proposed by
  11. Smog is a combination of
  12. Synecology is the study of
  13. Trophic levels are formed by
  14. Some animals have a constant high body temperature. This is because
  15. Gas liberated in Bhopal gas tragedy was
  16. In an ecosystem the population of
  17. Strontium- 90 can cause
  18. Ultra-violet radiation from sunlight causes the reaction that produce
  19. When a big fish eats a small fish, which eats water fleas supported by phyto-plankton, the water-fleas…
  20. When compared to the trophic level above, the total energy present in any given trophic level is necessarily
  21. Which is the correct sequence in a food-chain
  22. Species that occur in different geographical regions separated by special barriers are
  23. Plants growing on sea shores show characters of
  24. Soil particles are arranged in order of increasing size are
  25. A pond is
  26. Acid rain is
  27. The most widespread form of symbiosis in nature is
  28. The first fish that eats upon the planktonic form is
  29. The total set of feeding relationships in a biotic community is called
  30. Which of the following is normally not an important atmospheric pollutant