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Organisms and P...

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  • Question 1
    1 / -0

    Which of the following statements is/are incorrect:

  • Question 2
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    Which of the following is associated with the description of life-forms in plant communities?

  • Question 3
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    Organisms in a particular environment have special teeth structure, feet, body shape and body coverings. These adaptations are called

  • Question 4
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    Which of the following are not true regarding hydrophytes?

    A. Stomata are sunken.
    B. Stem is slender and flexible.
    C. Emergent forms show heterophylly.
    D. Root system is either absent or poorly developed.
    E. They have thick cuticle, well-developed epidermis and hypodermis.

  • Question 5
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    What is the advantage of velamen over epiphytic plants?

  • Question 6
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    Which of the following is/are poikilotherm:

  • Question 7
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     Match the following:
     

    Relationship
    		 Organisms
    1. Mutualism a. Mycorrhizae on the surface of plants
    2. Commensalism b. Lianas using trees for vertical support
    3. Protocooperation c. Sea anemone attached to the cells of hermit crab
    4. Exploitation d. Cattle grazing grass

  • Question 8
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    Biotic components of a habitat includes

  • Question 9
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    In the case of saturated air, the column of air tends to be in stable equilibrium, when the prevailing lapse rate

  • Question 10
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    Which kind of interaction is shown by sea anemone and hermit crab?

  • Question 11
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    Match List-I with List-II and select the correct option.

    List-I (Biomes)
    		 List-II (Species)
    A. Coniferous forest 1. Spruce
    B. Tropical rainforest 2. Rubber
    C. Tropical deciduous forest 3. Sal
    D. Temperate forest 4. Oak

  • Question 12
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    Which of the following biomes is incorrectly paired with the description of its climate?

  • Question 13
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    High growth at the time of exponential phase of human population growth curve is due to

  • Question 14
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    Which of the following is an example of mutualism?

  • Question 15
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    Examples of artificial ecosystem is/are:

  • Question 16
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    Different types of population fluctuation are

    A. flat type
    B. cyclic type
    C. gradual type
    D. seasonal type
    E. annual type

  • Question 17
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    Recent human population growth is attributed to

    A. agricultural revolution
    B. genetic drift
    C. industrial revolution
    D. medical advances
    E. altruistic behaviour

  • Question 18
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    Biomes are defined by

    1. plant structures
    2. leaf types
    3. climate
    4. plant spacing

    Which of the above are true?

  • Question 19
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    Match the following:

    Column I Column II
    A. Mesothermic i. Grow in a wide range of temperature, from 0 to 55°C
    B. Hekisothermic ii. Live in a narrow range of temperature, like aquatic plants
    C. Eurythermic iii. Live in neither hot nor cold climates, as in tropical rain forests
    D. Stenothermic iv. Mostly grow in alpine regions

  • Question 20
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    Select the mismatched pair out:

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