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10th Standard Science - Origin and Evolution of Life Model Question Paper Oct-31 , 2019

Origin and Evolution of Life

10th Standard Science - Origin and Evolution of Life Model Question Paper

Origin and Evolution of Life Model Question Paper

10th Standard

    Reg.No. :
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Science

Time : 02:30:00 Hrs
Total Marks : 60
    6 x 1 = 6

  1. Biogenetic law states that ___________

    (a)

    Ontogeny and phylogeny go together

    (b)

    Ontogeny recapitulates phylogeny

    (c)

    Phylogeny recapitulates ontogeny

    (d)

    There is no relationship between phylogeny and ontogeny

  2. Paleontologists deal with

    (a)

    Embryological evidences

    (b)

    Fossil evidences

    (c)

    Vestigial organ evidences

    (d)

    All the above

  3. The term Ethnobotany was coined by

    (a)

    Khorana

    (b)

    J.W. Harshberger

    (c)

    Ronald Ross

    (d)

    Hugo de Vries

  4. ________ is not an example of vestigial organ.

    (a)

    Coccyx

    (b)

    Appendix

    (c)

    Thick hair

    (d)

    Nictitating membrane

  5. _______ is the only planet in the Goldilock zone for life.

    (a)

    Mercury

    (b)

    Earth

    (c)

    Mars

    (d)

    Venus

  6. Paleobotany is derived from Greek words Paleon that means _________.

    (a)

    old

    (b)

    new

    (c)

    past

    (d)

    aged

    7. 5 x 1 = 5

  7. The characters developed by the animals during their life time, in response to the environmental changes are called ______________.

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    acquired character

  8. The forelimbs of bat and human are examples of ______________ organs.

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    homologous

  9. The theory of natural selection for evolution was proposed by ____________

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    Charles Darwin

  10. _______is a fossil bird.

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    Archaeopteryx

  11. _______ is a living fossil.

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    Ginko biloba

    12. 5 x 1 = 5

  12. Atavism

    13. (1)

    Lamarck

  13. Analogous organs

    14. (2)

    Radiocarbon dating

  14. Wood park

    15. (3)

    Thiruvakkarai

  15. W.F. Libby

    16. (4)

    Rudimentary tail and thick hair on the body

  16. Giraffe

    17. (5)

    A wing of a bat and a wing of an insect
    2 x 1 = 2

  17. What is the name of Study of fossils?

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    Palaeontology.

  18. A connecting link between reptiles and birds.

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    Archaeopteryx.

    19. 6 x 2 = 12

  19. Which organism is considered to be the fossil bird?

  20. What is the study of fossils called?

  21. Explain Biogenesis.

  22. Explain Atavism?

  23. What is Paleobotany?

  24. Define a fossil

    25. 4 x 4 = 16

  25. Why is Archaeopteryx considered to be a connecting link?

  26. Define Ethnobotany and write its importance.

  27. How can you determine the age of the fossils?

  28. Explain Use and Disuse theory.

    29. 2 x 7 = 14

  29. Natural selection is a driving force for evolution-How?

  30. How does fossilization occur in plants?

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