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By Ecology and General Silviculture No Comments

The ecosystem exists in a state of ‘balance’. Supposing one of the heterotrophs, says the rabbit, multiplies and increases in number suddenly then:

A. The balance will be permanently upset because the rabbits will eat the grass in the system and die of starvation
B. The ‘balance’ will be restored by an increase in the wolf population
C. Epidemics will break out in the rabbits and kill all of them
D. Rabbits will starts eating each other

Related Mcqs:

  1. In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:

    A. Primary and secondary consumers are similar
    B. Both biotic and abiotic components are different
    C. The biotic components are almost similar
    D. The abiotic components are almost similar

  2. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

    A. Pinus nigra – Japan
    B. Euralyptus – Australia
    C. Polunia – China
    D. All of the above

  3. The term biosphere is used for the zone of earth where life exists:

    A. On the lithosphere surface
    B. In the hydrosphere
    C. In the lithosphere, hydrosphere and atmosphere
    D. In the lithosphere and hydrosphere

  4. The part of earth in which life exists is known as:

    A. Lithosphere
    B. Biosphere
    C. Atmosphere
    D. Hydrosphere

  5. The part of earth in which life exists is known as:

    A. Lithosphere
    B. Biosphere
    C. Atmosphere
    D. Hydrosphere

  6. An ecosystem may be defined as:

    A. A localized association of several plants and animals
    B. Different communities of plants, animals and microbes, together with their physico-chemical environments
    C. Different communities of plants and microbes plus their physico-chemical environments
    D. None of the above

  7. Which of the following terms is not a synonym literally for ecosystem?

    A. Ectosome
    B. Ecosphere
    C. Microcosm
    D. Holocene

  8. The cybernetics of an ecosystem refers to:

    A. Harvest index
    B. A feedback mechanism
    C. Regulation of equilibrium
    D. Reverse energy flow

  9. Ecosystem receives nitrogen from outside through:

    A. Biological nitrogen fixation
    B. Electrification of nitrogen
    C. Industries
    D. All the above

  10. Which ecosystem has the highest primary productivity?

    A. Pond ecosystem
    B. Lake ecosystem
    C. Grassland ecosystem
    D. Forest ecosystem

The correct answer to the question: "The ecosystem exists in a state of ‘balance’. Supposing one of the heterotrophs, says the rabbit, multiplies and increases in number suddenly then:" is "The ‘balance’ will be restored by an increase in the wolf population".

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