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ECOLOGY AND BIODIVERSITY
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ECOLOGY AND BIODIVERSITY
Very Short Answer Questions
Q1. Define the term ecology and its branches
Q2. What is an ecological population?
Q4. Distinguish between ecosystem and biome
Q5. What is meant by ecosphere?
Q6. Explain the difference between the niche of an organism and its habitat
Q7. A population has more genetically similar organisms than those on biotic community. Justify the statement
Q8. How do the fish living in Antarctic waters manage to keep their body fluids from freezing?*
Q9. How does your body solve the problem of altitude sickness, when you ascend tall mountains?
Q10. What is the effect of light on body pigmentation?
Q11. Distinguish the terms phototaxis and photokinesis
Q12. What are circadian rhythms?
Q13. What is photoperiodism?
Q14. Mention the advantages of some UV rays to us
Q15. What is cyclomorphosis? Explain its importance in Daphnia
Q16. What are regulators ?
Q17. What are conformers ?
Q18. Define commensalism Give one example
Q19. Define mutualism. Give one example
Q20. Differentiate between Amensalism and Predation
Q21. What is meant by interspecific competition? Give one example
Q22. What is camouflage? Give its significance
Q23. What is Gause s principle? When does it applicable?
Q24. Distinguish between lotic and lentic habitats
Q25. What is zone of compensation in an aquatic ecosystem?
Q26. Distinguish between phytoplankton and zooplankton
Q27. Distinguish between neuston and nekton
Q29. Write three examples for man-made ecosystems
Q30. Explain the process of leaching
Q32. What is the percentage of PAR, in the incident solar radiation
Q34. What is standing crop?
Q35. Explain the terms GPP, NPP
Q36. Distinguish between upright and inverted ecological pyramids
Q37. Distinguish between litter and detritus
Q38. Distinguish between primary and secondary productivity
Q39. What is ecological diversity? Mention the different types of ecological diversities
Q40. Define species richness
Q41. Mention any two products of medicinal importance obtained from Nature
Q42. Invasion of an Alien species leads to extinction of native species Justify this with two examples
Q43. How are National Parks different from Wildlife Sanctuaries?
Q44. List out any four sacred groves in India
Q45. Write the full form of IUCN In which book threatened species are enlisted
Q1. What is summer stratification? Explain
Q2. What is the significance of stratification in lakes?
Q3. Explain vant Hoff rule
Q4. Unlike mammals the reptiles cannot tolerate environmental fluctuations in temperature How do they adapt to survive in desert conditions?
Q5. How do terrestrial animals protect themselves from the danger of dehydration of bodies?
Q6. How do marine animals adapt to hypertonic seawater?
Q7. Discuss the various types of adaptations in freshwater animals
Q8. Distinguish between euryhaline and stenohaline animals
Q9. Many tribes living in high altitude of Himalayas normally have higher red blood cell count (or) total haemoglobin than the people living in the plains Explain?
Q10. Predation has a significant role in maintaining of species diversity - discuss
Q11. Discuss competitive release
Q12. Write a short note on the parasitic adaptations
Q13. Explain brood parasitism with a suitable example
Q14. How do predators act as biological control?
Q15. Explain the different types of aquatic ecosystems
Q16. Explain the different types of terrestrial ecosystems
Q17. Explain the terms saprotrophs, detritivores, and mineralizers
Q18. Define decomposition and describe the process and products of decomposition
Q19. What is primary productivity? Give a brief description of the factors that affect primary productivity
Q20. Define ecological pyramids and describe with examples, pyramids of numbers and biomass
Q21. What are the three levels of biodiversity?
Q22. What are the reasons for greater biodiversity in the tropics?
Q23. What is the evil quartet ?
Q24. Explain in brief Biodiversity hot Spots
Q25. Explain Rivet Popper hypothesis
Q26. Write short notes on In-situ conservation
Q27. What are the three categories of threatened species?
Q1. Write an essay on temperature as an ecological factor
Q2. Write an essay on water as an ecological factor
Q3. Describe lake as an ecosystem giving examples for the various zones and the biotic components in it
Q4. Describe different types of food chains that exist in an ecosystem
Q5. Give an account of flow of energy in an ecosystem