Home
Class 10
BIOLOGY
Body Cavity (Coelom)....

Body Cavity (Coelom).

Text Solution

Verified by Experts

The cavity between the body and internal organs is called body cavity or coelom.
(ii) For multicellular animals, during initial period of their embryonic development, the body cavity is formed either from the mesoderm or gut. Such cavity is present in animals of phylum Annelid a and all phyla coming after Annelida. Such animals are called ·'eucoelomate' (animals with true body cavity).
(iii) In some multicellul animals, the body cavity is absent. They are known as ' acoelomate' e.g. Porifera, Cnidaria, Platyheminthes.
(iv) In Aschelminthes, the body cavity is formed in a different way than normal. Those animals are called pseudocoelomates.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ANIMAL CLASSIFICATION

    CHETAN PUBLICATION|Exercise COMPLETE THE FOLLOWING CHART AS PER THE GIVEN INFORMATION|5 Videos

  • ANIMAL CLASSIFICATION

    CHETAN PUBLICATION|Exercise LABEL THE FOLLOWING DIAGRAMS|7 Videos

  • ANIMAL CLASSIFICATION

    CHETAN PUBLICATION|Exercise DEFINE|14 Videos

  • CELL BIOLOGY AND BIOTECHNOLOGY

    CHETAN PUBLICATION|Exercise ASSIGNMENT|13 Videos

Similar Questions

Explore conceptually related problems

How useful is the study of the nature of body cavity and coelom in the classification of animals?

Why is the body cavity of the roundworm called a pseudocoel?

Knowledge Check

  • The central body cavity of poriferans are:

    A
    Gastrocoel
    B
    Coelom
    C
    Hacinocoel
    D
    Spongocoel

  • Body cavity lined by mesoderm is called ……………….. .

    A
    coelenteron
    B
    pseudocoel
    C
    coelom
    D
    blastocoel

  • Identify the correct statements from the below. (I) Animals do not possess a body cavity are called acoelomates. (II) Animals that possess a pseudocoel are called pseudocoelomates. (III) Animals in which the developing embryo has three germinal layèrs are called triploblastic. (IV) Arthropods are pseudocoelomates.

    A
    I, II and III only
    B
    I and II only
    C
    I and III only
    D
    I, II, III and IV

    • Similar Questions

    Explore conceptually related problems

    Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm.Such animals are called

    Body cavity is absent in …………….

    In Aschelminthes, the body cavity is not formed by mesoderm. So, they are called as ……………

    The animals which do not possess body cavity are called _____

    Animals with true body cavity are called acoelomates.

    Home
    Profile