The source of energy in an ecosystem is

A. light received from sun

B. heat liberated during respiration

C. heat liberated during fermentation

D. none of these

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  1. The total interacting animals and plants in any well defined area which as field or a pond is known…
  2. The transitional zone where two different types of communities meet is called the
  3. The energy storage of consumer level is called
  4. Smog is a combination of
  5. The total set of feeding relationships in a biotic community is called
  6. When compared to the trophic level above, the total energy present in any given trophic level is necessarily
  7. Which of the following is normally not an important atmospheric pollutant
  8. Animals in cold regions have fur because
  9. Which of the following is an anti-forest conservation activity ?
  10. Synecology is the study of
  11. Which is the correct sequence in a food-chain
  12. Some animals have a constant high body temperature. This is because
  13. The most polluted city in the world is
  14. Acid rain is
  15. Synecology is the study of
  16. Species that occur in different geographical regions separated by special barriers are
  17. The first fish that eats upon the planktonic form is
  18. Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
  19. Soil particles are arranged in order of increasing size are
  20. Ultra-violet radiation from sunlight causes the reaction that produce
  21. One always finds many more of the prey species than of the predator. This is called a
  22. Silent valley of Kerala is preserved because
  23. Plants growing on sea shores show characters of
  24. The source of energy in an ecosystem is
  25. A food-chain consists of
  26. Biome is
  27. In an ecosystem the population of
  28. Which one is the direct ecological factor ?
  29. Biological equilibrium is equilibrium among the
  30. An association between two or more species in which both are benefited is known as