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Tube -in - tube organization is absent i...

Tube -in - tube organization is absent in

A

flatworms

B

roundworms

C

earthworms

D

silkworms

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The correct Answer is:
A
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AAKASH SERIES-ANIMAL KINGDOM -EXERCISE -II (BASIC OF CLASSIFICATION )
  1. Lowest level of organistation among eumetazoans is

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  2. Different types of cells are functionally iolated in which grade of or...

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  3. The principal axis in radial symmetry is

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  4. Cephalization is associated with

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  5. Multicellular animals do not exhibit

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  6. Peristalsis of alimentary canal occurs independent of the contraction...

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  7. Tube -in - tube organization is absent in

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  8. Mouth is formed as a secondary opening of alimentary canal in

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  9. Examine the figures of diploblastic (i) and triploblastic (ii) organ...

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  10. Which of the following statements is incorrect with regard to bilatera...

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  11. Diploblastic and triploblastic are terms that describe

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  12. Read the following statements and select the correct option (a) All...

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  13. The figures given below show the tyes of coelom . Identify them sele...

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  14. Study carefully the given flow chart and fill in the blanks (A) , (...

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  15. Select the correct matching of animal , its symmetry and type of body ...

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  16. The animals possesing the following of germ layers (A and B) are cal...

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  17. Which of the following are correct ?

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  18. Which of the following is correctly matched ?

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  19. In some animal groups , the body is found divided into compartments wi...

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  20. Match the following list of animals with their level of organisation ....

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