Home
Class 12
BIOLOGY
In the course of evolution, the true coe...

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

A

Chordata

B

Annelida

C

Aschelminthes

D

Echinodermata

Text Solution

Verified by Experts

The correct Answer is:
B
Annelida
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-A)|55 Videos

  • ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-B)|45 Videos

  • ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|30 Videos

  • ANIMAL KINGDOM (CHORDATES)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D)|10 Videos

  • BIODIVERSITY AND CONSERVATION

    AAKASH INSTITUTE ENGLISH|Exercise SECTION - D (Assertion-Reason Type Questions)|10 Videos

Similar Questions

Explore conceptually related problems

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

True coelom is covered by

"During the course of evolution, organs or features may be adapted for new functions." Explain this fact by choosing an appropriate example.

coelom in earthworm is

During the course f evolution why DNA was choosen over RNA as genetic material. Give reasons by first discussing the desired criteria in a molecule that can act as genetic meterial and in the light of biochemical differences between DNA and RNA .

During the course of evolution why was DNA was chosen over RNA as genetic material? Give reasons by first discussing the desired criteria in a molecule that can act as genetic material and in the light of biochemical differences between DNA and RNA.

[A]: 'Ontogeny recapitulates phylogeny' was the concept put forward by Haeckel. [R]: The embryonic stages show the course of evolution which an adult has gone through during development

On the basis of coelom, the hemichordates are

The first mammal appeared in :

Coelom in flat worms is

AAKASH INSTITUTE ENGLISH-ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)-Exercise
  1. Among the following most complex level of organisation is present in

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. The digestion of food in sponges is

    Text Solution

    |

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

    Text Solution

    |

  9. The fertilisation isand development isin sponges.

    Text Solution

    |

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

    Text Solution

    |

  11. The central body cavity of coelenterates is called

    Text Solution

    |

  12. Nemtatocysts are the

    Text Solution

    |

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

    Text Solution

    |

  14. In flatworms, fertilisation occurs in the

    Text Solution

    |

  15. The free swimming larva of coelenterates is

    Text Solution

    |

  16. Name the special cells which are the characteristics of coelentrates

    Text Solution

    |

  17. Which of the following is incorrect match?

    Text Solution

    |

  18. Tentacles of ctenophores contain

    Text Solution

    |

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

    Text Solution

    |

  20. Hydra is

    Text Solution

    |