Evolution Of Plants And Animals

10 Questions
  1. 1
    Consider the following statements :
    1. The Earth's magnetic field has reversed every few hundred thousand years.
    2. When the Earth was created more than 4000 million years ago, there was 54% oxygen and no carbon dioxide.
    3. When living organisms originated, they modified the early atmosphere of the Earth.
    Which of the statements given above is/are correct ?
    UPSC CSE I - 2018
  2. 2
    Among the following organisms, which one does not belong to the class of other three?
    UPSC CSE I - 2014
  3. 3
    Which of the following phenomena might have influenced the evolution of organisms?
    1. Continental drift
    2. Glacial cycles
    Select the correct answer using the code given below.
    UPSC CSE I - 2014
  4. 4
    Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
    UPSC CSE I - 2012
  5. 5

    Among the following, which one is not an ape?

    UPSC CSE I - 2008
  6. 6

    Octopus is

    UPSC CSE I - 2003
  7. 7

    Consider the following statements:

    1. The common blue green algae, Spirogyra and Ulothrix, are found n both fresh water ponds and oceans.
    2. The Chameleon can look ahead with one eye, and at the same time look behind with another.

    Which of these statements is/are correct?

    UPSC CSE I - 2003
  8. 8

    In the context of organic evolution the loss of limbs in snakes is explained by the phenomenon of

    UPSC CSE I - 2002
  9. 9

    Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?

    UPSC CSE I - 2002
  10. 10

    The tribal population in Andaman and Nicobar Islands belongs to the:

    UPSC CSE I - 1997