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

  • question_answer
      Thallophyta, Bryophyta and Pteridophyta are called as 'cryptogams'. Gymnosperms and angiosperms are called as 'phanerogams'. Discuss why?  Draw  one  example  of gymnosperm.  

    Answer:

       The Thallophyta, Bryophyta and Pteridophyta are called 'cryptogams' because the reproductive organs of these groups are inconspicuous or hidden. Seeds are absent. On the other hand, 'phanerogams' include gymnosperms and angiosperms, which have well-differentiated reproductive tissue and the embryo with stored food.


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