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12th Standard Zoology - Evolution English Medium Free Online Test One Mark Questions with Answer Key 2020 - 2021

12th Standard

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Zoology

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. Who published the book “Origin of species by Natural Selection” in 1859?

    (a)

    Charles Darwin

    (b)

    Lamarck

    (c)

    Weismann

    (d)

    Hugo de Vries

  2. The age of fossils can be determined by

    (a)

    electron microscope

    (b)

    weighing the fossils

    (c)

    carbon dating

    (d)

    analysis of bones

  3. The Neanderthal man had the brain capacity of

    (a)

    650 – 800cc

    (b)

    1200cc

    (c)

    900cc

    (d)

    1400cc

  4. Carbon dioxide in the primitive earth is said to have been formed from ___________

    (a)

    Methane & Oxygen

    (b)

    Methane & Ammonia

    (c)

    Carbon and Oxygen

    (d)

    Carbon & Methane

  5. _____________ was not a part of theory of chemical evolution.

    (a)

    Sea served as chemical laboratory

    (b)

    Oxygen was not present

    (c)

    Physical forces such as UV, lightning contributed to changes.

    (d)

    Solar energy was not available

  6. Human evolution occured in _____________ era

    (a)

    Paleozoic

    (b)

    Cenozoic

    (c)

    Mesozoic

    (d)

    Precambrian

  7. Lamarck theory was disproved by _______________

    (a)

    Weinberg

    (b)

    August Weismann

    (c)

    Haeckel

    (d)

    Wallace

  8. Morphological isolation is also known as _______________

    (a)

    Physiological isolation

    (b)

    Cytological isolation

    (c)

    Mechanical isolation

    (d)

    Seasonal isolation

  9. According to big bang theory, the primitive earth had all the following. Except:

    (a)

    Ammonia

    (b)

    Methane

    (c)

    Oxygen

    (d)

    Hydrogen and water vapour

  10. In this type of selection no speciation takes place but the phenotype stability is maintained within the population over generation.

    (a)

    Stabilizing selection

    (b)

    Directional selection

    (c)

    Disruptive selection

    (d)

    Adaptive radiation

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