9th Class Science Diversity in Living Organisms Question Bank 9th CBSE Science Diversity in Living Organisms

  • question_answer
      (a) State two bases of classifying plants and animals into different categories. (b) List three characteristic feature of fungi. Some fungal species live in permanent    mutually    dependent relationship with cyan bacteria. What is this relationship called? Where are they found?   

    Answer:

      (a) Basis of classifying plants (i)Body differentiation. (ii) Presence or absence of conductive tissue. (iii) Naked or covered seeds. Basis of classifying animals (i) Cellular or tissue level of organisation of the body. (ii) Nature of body cavity (coelomic, pseudocoelomic or acoelomic). (iii) Presence or absence of notochord. (b) Characteristic features of fungi (i)They are heterophic eukaryotic a chlorophyllous organisms. (ii) They feed on dead decaying organic materials. (iii) They have cell wall made up of chitin. ·         This relationship is called symbiosis (e.g.. Lichen). ·         They are found as large coloured patches on the bark of trees in moist and shady areas. They are good indicators of pollution.


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