WebMar 10, 2009 · In bony fish, the operculum covers the gills. Why Spores are covered with hard covering? The hard covering protects the spore inside, as does the hard shell of an acorn, for example.
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WebThe operculum is a bony flap covering the gills in bony fishes or telosts. It regulates the direction of water flow over the gills. It is not found in cartilage fishes. Elasmobranchs do … The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. See more The opercular series contains four bone segments known as the preoperculum, suboperculum, interoperculum and operculum. The preoperculum is a crescent-shaped structure that has a series of ridges … See more During development the opercular series is known to be one of the first bone structures to form. In the three-spined stickleback the opercular series is seen forming at around … See more • Hyomandibula See more scotsman synonym
A cartilaginous fish with an operculum is - Toppr
WebYoung are nourished by yolk sac and remain in uterus. Young receive nutrients from a placenta. True or Flase; Gills are less efficient than lungs because water contains 1/20 as much oxygen as air. false. The skeleton of a member of the class Chondrichthyes is made of ___________. cartilage. WebAug 1, 2014 · The operculum is a bony flap covering the gills of a teleost fish. The operculum is a hard, plate-like, bony flap that covers the gills of a bony fish (superclass: Osteichthyes). It protects the gills and also serves … WebApr 10, 2024 · Gills: The Respiratory Organs of Fish. Gills are the key respiratory organs of fish. They are located on either side of the fish’s head and are protected by a bony structure called the operculum. Each gill is made up of a series of thin filaments that are covered in tiny blood vessels. Fish use their gills to extract oxygen from the water ... premises liability florida statute