Environmental Science and Ecology GK online MCQ practice set

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Practice MCQ Set of Environmental Science and Ecology

Q1. Ecology deals with the study of:

A. Living beings
B. Living and non living components
C. Reciprocal relationship between living and non living components
D. Environment

Q2. Autecology deals with

A. Ecology of species
B. Ecology of many species
C. Ecology of community
D. All the above

Q3. Synecology deals with

A. Ecology of many species
B. Ecology of many populations
C. Ecology of community
D. None of the above

Q4. Ecotype is a type of species in which environmentally inducedvariations are

A. Temporary
B. Genetically fixed
C. Genetically not related
D. None of the above

Q5. The term ‘Biocoenosis’ was proposed by

A. Transley
B. Carl Mobius
C. Warming
D. None of the above

Q6. The pyramid of energy in any ecosystem is

A. Always upright
B. May be upright or invented
C. Always inverted
D. None of the above

Q7. Energy flow in ecosystem is

A. Unidirectional
B. Bidirectional
C. Multidirectional
D. None of the above

Q8. An ecosystem must have continuous external source of

A. minerals
B. energy
C. food
D. All of the above

Q9. The source of energy in an ecosystem is

A. ATP
B. Sunlight
D. N.A

Q10. Trophic levels are formed by

A. Only plants
B. only animals
C. Only carnivorous
D. Organisms linked in food chain

Q11. Biotic potential is counteracted by

A. Competition with other organisms
B. Producer is the largest
C. Limitation of food supply
D. None of the above

Q12. Definition of ecosystem is

A. The community of organisms together with the environment in which they live
B. The abiotic component of a habitat
C. The part of the earth and its atmosphere which inhibits living organisms
D. A community of organisms interacting with one another

Q13. In a food chain of grassland ecosystem the top consumers are

A. Herbivorous
B. Carnivorous
C. Bacteria
D. Either carnivorous or herbivorous

Q14. MAB stands for

A. Man and biosphere
B. Man, antibiotics and bacteria
C. Man and biotic community
D. Mayer, Anderson and Bisby

Q15. Species that occur in different geographical regions separated by special barrier are:

A. Allopatric
B. Sympatric
C. Sibling
D. None of the above

Q16. Which one is true?

A. symbiosis when neither population affects each other
B. symbiosis when the interaction is useful to both the populations
C. commensalism when none of the interacting populations affect each other
D. commensalism when the interaction is useful to both the populations

Q17. A high density of elephant population in an area can result in

A. mutualism
B. Intraspecific competition
C. Interspecific competition
D. Predation on one another

Q18. Barnacles growing on the back of whale is an example for

A. mutualism
B. parasitism
C. amensalism
D. commensalism

Q19. Pencillium does not swallow the growth of bacterium Staphylococcus. This sort of relationship is called

A. commensalism
B. predation
C. amensalism
D. mutualism

Q20. Symbiosis is shown by

A. E.coli
B. Cuscuta
C. Rafflesia
D. Monotropa