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Water vascular system is the characteris...

Water vascular system is the characteristic of which group of the following:
a. Portifera b. Ctenophora c. Echinodermata d. Chordata.

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SANTRA PUBLICATION-CLASSIFICATION OF LIVING ORGANISMS-NCERT QUESTIONS
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  2. Differences between homosporous and heterosporous pteridophyte.

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  3. Describe the important characteristics of gymnosperms.

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  4. Write a note on economic importance of gymnosperms.

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  5. Both gymnosperms and angiosperms bear seeds, then why are they classif...

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  6. How would you distinguish monocots from dicots?

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  7. What are the difficulties thay you would face in classification of ani...

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  8. If you are given a specimen, what are the steps that you would follow ...

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  9. How useful is the study of the nature of body cavity and coelom in the...

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  10. Distinguish between intracellular and extracellular digestion?

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  11. What is the difference between direct and indirect development?

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  12. What are the peculiar features that you find in parasitic platyhelmint...

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  13. What are the reasons that you can think of for the arthopods to consti...

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  14. Water vascular system is the characteristic of which group of the foll...

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  15. All vertebrates are chordates but all chordates are not vertebrates. J...

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  16. How important is the presence of air bladder in Pisces?

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  17. What ate the modifications that are observed in birds that help them f...

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  18. Could the number of eggs of young ones produced by an oviparous and vi...

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  19. Segmentation in the body is first observed in which of the following. ...

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  20. Prepare a list of some animals that are found parasitic on human being...

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