--%>
Assignment Help - homework help

Gas exchange in fishes

How gas exchange is done in fishes?

E

Expert

Verified

Fishes are able to ‘breath’ through the gills. Gills, or branchiae, are extremely vascularized organs which are specialized in the process of gas exchange under water and present in the aquatic animals (crustaceans, marine annelids, fishes and tadpoles). Gills are respiratory organ (analogous, for instance, to the lungs) containing extremely thin lamellae along with several evident blood vessels which are in the direct contact with water. In osteichthyes, gills are enclosed by the bony flap which protects them termed as operculum while in chondrichthyes operculum is not there.

   Related Questions in Biology

  • Q : Flight adaptations exhibited by birds

    Write about the various flight adaptations exhibited by the birds?

    		•
  • Q : Competitive Pressures - Organizational

    Still another reason for the emergence of the importance of diversity to organizations is the realization that diversity can help them meet the competitive pressures they currently face. Firms that aggressively try to hire and promote women and minorities are going to end up with a more talented

    		•
  • Q : When own immune system of Individual is

    Elaborate name given to conditions in which the own immune system of the Individual is the agent of diseases? Give some illustrations of these conditions?

    		•
  • Q : Issues on an international e-commerce

    The local manufacturer of work and gardening gloves has been enjoy moderate success in its local markets with physical sales team. The president is convinced that the e-commerce site could significantly rise sales, specially on an international market.Eluc

    		•
  • Q : Wall resistance of plant cells Describe

    Describe wall resistance of plant cells? Does this resistance facilitate or make hard the entrance of water into the cell?

    		•
  • Q : Origin of internal membranous

    Specify the evolutionary origin of internal membranous organelles of cell?

    		•
  • Q : Mechanical digestion What do you mean

    What do you mean by mechanical digestion? In arthropods, molluscs, earthworms, vertebrates and birds, which organ participates respectively in this type of digestion?

    		•
  • Q : Intensity of simple

    How does the intensity of simple diffusion differ regarding the concentration gradient of moved substance?

    		•
  • Q : Strategy Canvas Analysis Strategy

    Strategy Canvas Analysis Canvas strategy is the framework for action once the diagnosis strategy to build the two functions (Kim and Mauborgne, 2005). First, the latest situation in the marke

    		•
  • Q : Prothallus of the pteridophytes Explian

    Explian the prothallus of the pteridophytes?

    		•