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

  • question_answer
      Write one point of difference each, between the following (a) Annelids and arthropods (b) Poriferans and coelenterates

    Answer:

       (a) Arthropods include insects which have body cavity filled with blood. Annelids do not have body cavity filled with blood.            (b) True root, stem and leaves are absent in halophytes', but present in pteridophytes.


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