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NCERT Exemplar · Class 9 Science Diversity in Living Organisms

57 questions · 57 still being checked

Multiple Choice Questions 31–34 (part 4 of 7)

  1. Exercise 31

    5\displaystyle 5-Kingdom classification has given by
    (a)
    Morgan
    (b)
    R. Whittaker
    (c)
    Linnaeus
    (d)
    Haeckel

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    (b)
    (b) R. Whittaker. In $\displaystyle 1969$ he proposed the five-kingdom system — Monera, Protista, Fungi, Plantae, Animalia — grouped by cell structure, nutrition and body organisation.

  2. Exercise 32

    Well defined nucleus is absent in
    (a)
    blue green algae
    (b)
    diatoms
    (c)
    algae
    (d)
    yeast

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    (a)
    (a) Blue-green algae. As prokaryotes (Monera) their genetic material lies free in the cytoplasm as a nucleoid, with no nuclear membrane; diatoms, algae and yeast are eukaryotic.

  3. Exercise 33

    The ‘Origin of Species’ is written by
    (a)
    Linnaeus
    (b)
    Darwin
    (c)
    Hackel
    (d)
    Whittaker
    DIVERSITY IN LIVING ORGANISMS

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    (b)
    (b) Darwin. Charles Darwin's On the Origin of Species ($\displaystyle 1859$) set out evolution by natural selection, the process underlying present-day biological classification.

  4. Exercise 34

    Meena and Hari observed an animal in their garden. Hari called it an insect
    while Meena said it was an earthworm. Choose the character from the
    following which confirms that it is an insect.
    (a)
    Bilateral symmetrical body
    (b)
    Body with jointed legs
    (c)
    Cylindrical body
    (d)
    Body with little segmentation

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    (b)
    Short Answer Questions
    (b) Body with jointed legs. Jointed legs mark Arthropoda; the earthworm (Annelida) has a soft segmented body with no legs, so this feature alone confirms the insect.