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In the course of evolution, true coelom ...

In the course of evolution, true coelom appeared for the first time in

A

Chordata

B

Annelida

C

Aschelminthes

D

Echinodermata

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The correct Answer is:
B
Annelida
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AAKASH INSTITUTE-ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)-Exercise
  1. Among the following most complex level of organisation is present in

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  2. The layer absent in the embryos of diploblastic animals is

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  3. In the course of evolution, true coelom appeared for the first time in

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  4. Which of the following is incorrect match of the phylum, its coelom ty...

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  5. On which body side, the notochord is formed during embryonic developme...

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  6. Which of the following animals has tube- within-tube type of body plan...

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  7. The digestion of food in sponges is

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  8. In pofiferans, the rudimentary division of labour is present between.

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  9. The fertilisation isand development isin sponges.

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  10. Which of the following is not the function of water transport system i...

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  11. The central body cavity of coelenterates is called

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  12. Nemtatocysts are the

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  13. How many germ layers are present in the embryonic stage of platyhelmin...

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  14. In flatworms, fertilisation occurs in the

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  15. The free swimming larva of coelenterates is

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  16. The characteristic cells of coelentrates are

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  17. Which of the following is incorrect match?

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  18. Tentacles of ctenophores contain

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  19. Which of the following is incorrect match regarding the phylum and its...

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  20. Hydra is

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