Zoology Fish Test Flashcards
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Questions and Answers

What is the CLASS consisting of 'bony fish'?

  • Chondrichthyes
  • Actinopterygii
  • Osteichthyes (correct)
  • Agnatha

    • What is the CLASS consisting of 'jawless fish'?

  • Actinopterygii
  • Osteichthyes
  • Chondrichthyes
  • Agnatha (correct)

    • What is the CLASS consisting of 'cartilaginous fish'?

  • Osteichthyes
  • Actinopterygii
  • Agnatha
  • Chondrichthyes (correct)

    • The SUBCLASS of bony fish that are ray-finned is called?

    <p>actinopterygii</p> Signup and view all the answers

    The SUBCLASS of bony fish that are lobe-finned is called?

    <p>sarcopterygii</p> Signup and view all the answers

    What are examples of Class Chondrichthyes?

    <p>Sharks, skates, and rays</p> Signup and view all the answers

    What are examples of Class Agnatha?

    <p>Hagfish and lampreys</p> Signup and view all the answers

    What are examples of Class Osteichthyes?

    <p>Catfish, bass, and goldfish</p> Signup and view all the answers

    What covers the gills on some fish?

    <p>Operculum</p> Signup and view all the answers

    Some fish lay eggs outside of the mother's body--these fish are ____.

    <p>Oviparous</p> Signup and view all the answers

    What helps sense movement of other organisms and vibrations in the water?

    <p>Lateral Line System</p> Signup and view all the answers

    What helps the fish maintain buoyancy and can inflate or deflate as needed?

    <p>Swim bladder</p> Signup and view all the answers

    Some fish give live birth and the embryos get nourishment from their mother--these fish are ____.

    <p>Viviparous</p> Signup and view all the answers

    What does it mean if a fish is cold-blooded?

    <p>Ectothermic</p> Signup and view all the answers

    Some fish give live birth but the embryos get nourishment from a yolk sac inside the mother--these fish are ____.

    <p>Ovoviviparous</p> Signup and view all the answers

    The main reproductive characteristic of most fish is that they are ____.

    <p>Dioecious</p> Signup and view all the answers

    The egg-laying behavior of fish is called ____.

    <p>Spawning</p> Signup and view all the answers

    Receptors in sharks that allow them to detect bioelectric fields.

    <p>Ampullae of Lorenzini</p> Signup and view all the answers

    What part of Class Chondrichthyes allows the male to transfer sperm to the female?

    <p>Claspers</p> Signup and view all the answers

    Which of the following statements is true about Class Chondrichthyes? (Select all that apply)

    <p>No operculum, only gill slits.</p> Signup and view all the answers

    Which of the following statements is true about Class Osteichthyes? (Select all that apply)

    <p>Have a swim bladder.</p> Signup and view all the answers

    Which of the following statements is true about Class Agnatha? (Select all that apply)

    <p>Do not have scales.</p> Signup and view all the answers

    What is the main feature of Class Agnatha?

    <p>They lack jaws</p> Signup and view all the answers

    What is one characteristic of many lampreys but not of hagfishes?

    <p>A parasitic lifestyle</p> Signup and view all the answers

    The two major groups of bony fishes are the __________ and __________.

    <p>Lobe-finned fishes, Ray-finned fishes</p> Signup and view all the answers

    Where does fertilization occur in cartilaginous fish?

    <p>Internally</p> Signup and view all the answers

    What is one of the main features of Class Chondrichthyes?

    <p>A skeleton made of cartilage</p> Signup and view all the answers

    What adaptation do some cartilaginous fishes have to increase buoyancy?

    <p>Increase buoyancy by storing lipids in their liver</p> Signup and view all the answers

    Which of the following ways can sharks locate their prey? (Select all that apply)

    <p>Chemoreception</p> Signup and view all the answers

    What does chemoreception refer to?

    <p>Sense of smell and taste</p> Signup and view all the answers

    What does the lateral line system do?

    <p>Can detect vibrations in the water</p> Signup and view all the answers

    What can ampullae of Lorenzini detect?

    <p>Can detect weak electrical fields</p> Signup and view all the answers

    Where does fertilization usually occur in bony fish?

    <p>Externally</p> Signup and view all the answers

    How does a bony fish adjust its buoyancy?

    <p>Swim bladder</p> Signup and view all the answers

    How can fish adjust their density?

    <p>By adjusting the amount of air in the swim bladder</p> Signup and view all the answers

    What is the main purpose of slime on a bony fish?

    Signup and view all the answers

    Study Notes

    Fish Classification

    • Osteichthyes: Class of bony fish, examples include catfish, bass, and goldfish.
    • Agnatha: Class of jawless fish, with examples like hagfish and lampreys.
    • Chondrichthyes: Class of cartilaginous fish, includes sharks, skates, and rays.

    Subclasses of Bony Fish

    • Actinopterygii: Subclass of ray-finned bony fish.
    • Sarcopterygii: Subclass of lobe-finned bony fish.

    Fish Anatomy and Features

    • Operculum: Covers the gills on some fish, aiding in protection and respiration.
    • Swim Bladder: Organ that helps fish maintain buoyancy by inflating or deflating.
    • Lateral Line System: Sensory system that detects movement and vibrations in the water.

    Reproductive Strategies

    • Oviparous: Fish that lay eggs outside the mother’s body.
    • Viviparous: Fish that give live birth with embryos receiving nourishment directly from the mother.
    • Ovoviviparous: Fish that give live birth but embryos receive nourishment from a yolk sac.
    • Dioecious: Most fish exhibit separate male and female sexes; reproductive behavior is called spawning.

    Temperature Regulation

    • Ectothermic: Fish are cold-blooded and rely on external sources to regulate body temperature.

    Specialized Structures

    • Ampullae of Lorenzini: Receptors in sharks for detecting bioelectric fields.
    • Claspers: Modified pelvic fins in male Chondrichthyes for sperm transfer.

    Fish Scales

    • Types include placoid, ctenoid, and ganoid scales, found in various classes of fish.

    Class Characteristics

    • Chondrichthyes:

      • Lack operculum, have gill slits.
      • Possess placoid scales and no swim bladder.
      • Many utilize internal fertilization.
      • Can maintain buoyancy by storing lipids and oils.

    • Osteichthyes:

      • Possess an operculum and typically use external fertilization.
      • Have swim bladders and various scale types (cycloid, ctenoid, ganoid).

    • Agnatha:

      • Do not possess scales or jaws, and include both saltwater and freshwater species.
      • Many exhibit parasitic behaviors.

    Notable Features

    • Fertilization in Chondrichthyes: Occurs internally as opposed to Oseichthyes, where most fertilization is external.
    • Buoyancy Adjustments: Bony fish adjust buoyancy through the swim bladder by regulating air volume.

    Sensing Prey

    • Sharks locate prey using:
      • Ampullae of Lorenzini for electric field detection.
      • Sound waves and chemoreception for smell and taste.
      • Lateral line system for vibrations and sight.

    Adaptations

    • The slime on bony fish provides protection and aids in movement through water.

    This study guide captures critical characteristics of different fish classes, their anatomy, reproduction, and adaptations, providing a comprehensive overview for zoology studies.

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    Description

    Test your knowledge of various fish classifications with this zoology flashcard quiz. Covering categories such as bony fish, jawless fish, and cartilaginous fish, this quiz helps reinforce your understanding of ichthyology. Perfect for students studying aquatic life and fish taxonomy.

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