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Ecology MCQ

62 MCQ questions with answers and explanations · page 1 of 3

Test yourself▶ 25 question test▶ 50 question test

Q1. The term ecology is first given by-

  1. ARobbert brown
  2. BAristotle
  3. CKhurana
  4. DReiter
Show answer & explanation

Answer: D) Reiter

Q2. Study of inter relationship between living organism and their environment is called-

  1. APlant Geography
  2. BEcology
  3. CPlant social science
  4. DEcosystem
Show answer & explanation

Answer: B) Ecology

Q3. Lichens, which are capable of intiating ecological succession even on a bare rock, are actually a symbiotic association of

  1. AAlgae and bacteria
  2. BAlgae and fungi
  3. CBacteria and fungi
  4. DFungi and mosses
Show answer & explanation

Answer: B) Algae and fungi

Q4. The term ecosystem is first given by-

  1. AReiter
  2. BAristotle
  3. CTansley
  4. DHaeckel
Show answer & explanation

Answer: C) Tansley

Q5. What is parasitism ?

  1. AAssociation necessary for survival of both partners
  2. BAssociation in which one species is benefitted and causes harm to another species
  3. CAssociation in which one species is benefitted and another is unaffected
  4. DNone of these
Show answer & explanation

Answer: B) Association in which one species is benefitted and causes harm to another species

Q6. Two components of ecosystem are-

  1. AHerb and shurb
  2. BAbiotic and biotic
  3. CFrog and human
  4. DPlant and animal
Show answer & explanation

Answer: B) Abiotic and biotic

Q7. Which one of the following is the correct sequence of a food chain ?

  1. ADiatoms-Crustaceans-Herrings
  2. BCrustaceans-Diatoms-Herrings
  3. CDiatoms-Herrings-Crustaceans
  4. DCrustaceans-Herrings-Diatoms
Show answer & explanation

Answer: A) Diatoms-Crustaceans-Herrings

Q8. Which of the following constitute a food-chain ?

  1. AGrass, wheat and mango
  2. BGrass, goat and human
  3. CGoat, cow and elephant
  4. DGrass. Fish and goatn(e) None of the above
Show answer & explanation

Answer: B) Grass, goat and human

Q9. Producer of an ecosystem-

  1. AConvert organic compound into in organic compound
  2. BConvert solar energy into chemical energy
  3. CUse chemical energy
  4. DRelease energy
Show answer & explanation

Answer: B) Convert solar energy into chemical energy

Q10. Main source of energy in a ecosystem is-

  1. ASun light
  2. BStored sugar in a plant
  3. CHeat released during fermentation
  4. DHeat released during respiration
Show answer & explanation

Answer: A) Sun light

Q11. Ina ecosystem the largest number is that of-

  1. APrimary producer
  2. BPrimary consumer
  3. CSecondary consumer
  4. DDecomposer
Show answer & explanation

Answer: A) Primary producer

Q12. What is farming along with animal husbandry called ?

  1. AMixed farming
  2. BMixed agriculture
  3. CDairy farming
  4. DTruck farming
Show answer & explanation

Answer: A) Mixed farming

Q13. Soil erosion can be controled by-

  1. ABy grazing more and more
  2. BBy removal of plant
  3. CBy afforestation
  4. DBy increased population
Show answer & explanation

Answer: C) By afforestation

Q14. Flood can be cheaked out-

  1. ABy making slope
  2. BBy cutting forest
  3. CBy marking dam and planting the tree
  4. DNone of these
Show answer & explanation

Answer: C) By marking dam and planting the tree

Q15. The resources which are obtained from biosphere and have life are :

  1. ARenewable resources
  2. BPotential biosphere
  3. CBiotic resources
  4. DAbiotic resources
Show answer & explanation

Answer: C) Biotic resources

Q16. What is the other name of Sahyadri Range ?

  1. ALesser Himalayas
  2. BShivaliks
  3. CWestern Ghats
  4. DEastern Ghats
Show answer & explanation

Answer: C) Western Ghats

Q17. The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural.nWhich one of the following is supporting service

  1. AProduction of food and water
  2. BControl of climate and disease
  3. CNutrient cycling and crop pollination
  4. DMaintenance of diversity
Show answer & explanation

Answer: D) Maintenance of diversity

Q18. Vultures which used to be very common in Indian country-side some years ago are rarely seen nowadays.nThis is attributed to-

  1. AThe destruction of their nesting sites by new invasive species
  2. BA drug used by cattle owners for treating their diseased cattle
  3. CScarcity of food available to them
  4. DA widespread and fatal disease among them
Show answer & explanation

Answer: A) The destruction of their nesting sites by new invasive species

Q19. Reduced leaves and sunken stomata are the main feature of-

  1. AEpiphytes
  2. BHydrophytes
  3. CXerophytes
  4. DMesophytes
Show answer & explanation

Answer: C) Xerophytes

Q20. An example of false fruit is-

  1. AApple
  2. BGuava
  3. CMango
  4. DTomato
Show answer & explanation

Answer: A) Apple

Q21. Which type of forests majorly comprises of lichens and mosses ?

  1. ATaiga forests
  2. BTundra forests
  3. CTemperate mixed forests
  4. DTropical ever green forests
Show answer & explanation

Answer: B) Tundra forests

Q22. Epiphytes are found in those places where-

  1. ATemperature is very low
  2. BConcentration of oxygen is high
  3. CRain fall occur all over year
  4. DRain fall occur according to season
Show answer & explanation

Answer: C) Rain fall occur all over year

Q23. Largest ecosystem of world is-

  1. AGrass land
  2. BLake
  3. CSea
  4. DForest
Show answer & explanation

Answer: C) Sea

Q24. When we eat the flesh of goat we are-

  1. APrimary consumer
  2. BSecondary consumer
  3. CTertiary consumer
  4. DNone
Show answer & explanation

Answer: B) Secondary consumer

Q25. We get solar energy from-

  1. AMoon
  2. BSea
  3. CSun
  4. DAir
Show answer & explanation

Answer: C) Sun

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