Origin and Evolution of Life Two Marks Questions

10th Standard

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Science

Time : 00:45:00 Hrs
Total Marks : 20
    10 x 2 = 20
  1. A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?

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

  3. What is the study of fossils called?

  4. What is theory of Cosmic origin?

  5. What is theory of Spontaneous generation or Abiogenesis?

  6. Give some examples of vestigial organs in man.

  7. What is Paleobotany?

  8. What is the significance of Ethnobotany.

  9. What are extremophiles?

  10. Define a fossil

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