What is a proper definition of coelom.Explain in brief?
Asked by mehrotradeepa30 | 30th May, 2017, 08:13: PM
Body cavity or coelom is a fluid-filled cavity present between the body wall and the digestive tract. It is lined with mesoderm. All the internal organs are suspended in the coelom.
Significance of coelom:
- Acts as a shock absorber and protects the internal organs from shocks.
- Acts as a hydraulic skeleton and helps soft-bodies and segmented animals in burrowing and locomotion.
- Provides space where body organs remain suspend and better compartmentalised.
- Provides medium for circulation, transporting food, gases and nitrogenous wastes.
- Allows temporary storage of wastes.
Answered by Sheetal Kolte | 31st May, 2017, 12:58: PM
- Define metamerism.
- State any two phyla of non-chordates which have radial symmetry as their characteristic feature.
- What is a true coelom?
- What are diploblastic animals?
- Name the embryonic layers present in diploblastic animals.
- Define notochord.
- Why is it said that echinoderms show secondary radial symmetry?
- What symmetry pattern do humans possess? Which part of the human body is said to be the dorsal part?
- Justify the statement. Ascaris is described as a pseudocoelomate.
- Distinguish between diploblastic and triploblastic animals.
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