Biology Questions: Chapter 13 Organisms And Populations

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Biology Questions: Chapter 13 Organisms And Populations - Quiz

What we have here are Biology Questions on Chapter 13 Organisms and Populations. The earth is made up of both living and nonliving things, and each has a role to play in our environment. If you are looking for a way to see just how much you understood about the chapter, this quiz will refresh your understanding. Give it a shot and see how much revision you need.


Questions and Answers
  • 1. 
    Sunken stomata are found in:
    • A. 

      Hydrophytes

    • B. 

      Xerophytes

    • C. 

      Mesophytes

    • D. 

      Halophytes

  • 2. 
    The organisms which are restricted to a narrow range of salinity are called:
    • A. 

      Stenohaline

    • B. 

      Euryhaline

    • C. 

      Stenothermic

    • D. 

      Eurythermic

  • 3. 
    Mammals of colder climates generally have shorter _______ and _______ to minimize heat loss.
    • A. 

      Ears and limbs

    • B. 

      Ears and nose

    • C. 

      Nose and limbs

    • D. 

      Ears and hair

  • 4. 
    The study of interactions between loving organisms and environment is called:
    • A. 

      Ecosystem

    • B. 

      Phytogeography

    • C. 

      Ecology

    • D. 

      Phytosociaology

  • 5. 
    Many zooplankton species under unfavourable conditions enter a stage of suspended development called _______.
    • A. 

      Diapause

    • B. 

      Hibernation

    • C. 

      Aestivation

    • D. 

      Suspension

  • 6. 
    The success of an animal is due to their ability to maintain a constant:
    • A. 

      Body temperature

    • B. 

      PH

    • C. 

      Internal environment

    • D. 

      Low temperature

  • 7. 
    Reproduction in an overpopulated country like India is a:
    • A. 

      Waste of resources

    • B. 

      Boon

    • C. 

      Burden

    • D. 

      Both 1 and 3

  • 8. 
    When two species come to meet together and live hand by hand further it is called:
    • A. 

      Euthenics

    • B. 

      Inbreeding

    • C. 

      Eugenics

    • D. 

      None of these

  • 9. 
    Exponential growth is maximum in:
    • A. 

      Tissue culture cells

    • B. 

      Embryo

    • C. 

      Unicellular organisms

    • D. 

      Multicellular organisms

  • 10. 
    Who stated that human population grows geometrically?
    • A. 

      Malthus

    • B. 

      Darwin

    • C. 

      Cannon

    • D. 

      Lamark

  • 11. 
    Predict the graph, if the rate of addition of new members increases with respect to the individuals lost of the same population.
    • A. 

      Declined growth

    • B. 

      Exponential growth

    • C. 

      Zero population growth

    • D. 

      None of these

  • 12. 
    A force acting against achievement of highest possible level of population growth is:
    • A. 

      Carrying capacity

    • B. 

      Environmental resistance

    • C. 

      Population pressure

    • D. 

      Saturation level

  • 13. 
    Number of individuals present per unit area at a given time is:
    • A. 

      Population size

    • B. 

      Population density

    • C. 

      Distribution of population

    • D. 

      Population ratio

  • 14. 
    The number of females to males per thousand individuals is:
    • A. 

      Female ratio

    • B. 

      Male ratio

    • C. 

      Population ratio

    • D. 

      Sex ratio

  • 15. 
    Plants that grow on saline soils are called:
    • A. 

      Epiphytes

    • B. 

      Psammophytes

    • C. 

      Halophytes

    • D. 

      Parasites

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