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12th Standard English Medium Biology (Botany) Subject Principles of Ecology Book Back 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. Ecology is the study of an individual species is called
    i) Community ecology
    ii) Autecology
    iii) Species ecology
    iv) Synecology

    (a)

     i only

    (b)

    ii only 

    (c)

     i and iv only

    (d)

    ii and iii only

  2. A specific place in an ecosystem, where an organism lives and performs its functions is _____.

    (a)

    habitat

    (b)

    niche

    (c)

    landscape

    (d)

    biome

  3. Read the given statements and select the correct option.
    i) Hydrophytes possess aerenchyma to support themselves in water.
    ii) Seeds of Viscum are positively photoblastic as they germinate only in presence of light.
    iii) Hygroscopic water is the only soil water available to roots of plant growing in soil as it is present inside the micropores.
    iv) High temperature reduces use of water and solute absorption by roots

    (a)

    i, ii, and iii only

    (b)

    ii, iii and iv

    (c)

    ii and iii only

    (d)

    i and ii only

  4. Which of the given plant produces cardiac glycosides?

    (a)

    Calotropis

    (b)

    Acacia

    (c)

    Nepenthes

    (d)

    Utricularia

  5. Strong, sharp spines that get attached to animal’s feet are found in the fruits of ______.

    (a)

    Argemone

    (b)

    Ecballium

    (c)

    Heritier

    (d)

    Crossandra

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