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MCQ 13.Organisms and Populations / अध्याय : जीव और समष्टियाँ

MCQ Test ( Pick Most appropriate One )

  • Q:1

    The mathematical expression for logistic growth is

  • A
    dt/dN = rN (K-N/K)
  • B
    dN/dt = rN (K-N)
  • C
    dN/dt = rN (K-N/K)
  • D
    dN/dt = r (K-N/K)
  • Q:2

    Some animals like snails go into aestivation to avoid

  • A
    Low temperature
  • B
    High temperature
  • C
    Constancy in temperature
  • D
    Variation in temperature
  • Q:3

    ________is a place in which an organism dwells.

  • A
    Desert
  • B
    Niche
  • C
    Habitat
  • D
    polar regions
  • Q:4

    If natality is low, population density is

  • A
    low
  • B
    high
  • C
    variation
  • D
    constant
  • Q:5

    Sunken stomata help in___________adaptation.

  • A
    Aquatic
  • B
    Terrestrial
  • C
    Xerophytic
  • D
    None of these
  • Q:6

    The competitive exclusion principle has been given by

  • A
    Gloger
  • B
    Bergman
  • C
    Gause
  • D
    Allen
  • Q:7

    The number of death in a population in a given time is called

  • A
    natality
  • B
    mortality
  • C
    immigration
  • D
    emigration
  • Q:8

    _________is the strategy of production of few off springs?

  • A
    k-selection
  • B
    r-selection
  • C
    age distribution
  • D
    population density
  • Q:9

    Organisms which are able to survive in highly fluctuating temperatures are

  • A
    Stenothermal
  • B
    Eurythermal
  • C
    Parathermal
  • D
    Hypothermal
  • Q:10

    Mycorrhiza is an example of

  • A
    Mutualism
  • B
    Parasitism
  • C
    Commensalisms
  • D
    interspecific interaction