Cyclostomata Class of Chordata
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Questions and Answers

What is the characteristic feature of a Cyclostomata's mouth?

  • It has a sucking mouth (correct)
  • It has a cartilaginous cranium
  • It has paired fins
  • It has jaws

    • How do Cyclostomes carry out respiration?

  • Through their scales
  • Through their gill slits (correct)
  • Through their paired fins
  • Through their caudal fin

    • What is the purpose of the caudal fin in a lamprey?

  • To facilitate respiration
  • To help with propulsion and steering in the water (correct)
  • To sense the environment
  • To defend against predators

    • What is the habitat of Cyclostomes?

    <p>Marine, but migrate to freshwater for spawning</p> Signup and view all the answers

    What happens to Cyclostomes after spawning?

    <p>They die within a few days</p> Signup and view all the answers

    What is Petromyzon an example of?

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

    What is unique about the body of Cyclostomes?

    <p>They do not have paired fins</p> Signup and view all the answers

    What is the function of the gill slits in Cyclostomes?

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

    What is the shape of the mouth in Cyclostomes?

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

    What is the characteristic of the vertebral column in Cyclostomes?

    <p>It is cartilaginous</p> Signup and view all the answers

    What is the genus of hagfish, which is an example of Cyclostomata?

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

    What happens to the larvae of Cyclostomes after metamorphosis?

    <p>They migrate to the ocean</p> Signup and view all the answers

    What is the characteristic of the cranium in Cyclostomes?

    <p>It is cartilaginous</p> Signup and view all the answers

    What is the function of the gill slits in Cyclostomes?

    <p>For respiration</p> Signup and view all the answers

    What is the typical habitat of Cyclostomes during their adult life?

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

    What is the characteristic of the body of Cyclostomes?

    <p>It is elongated</p> Signup and view all the answers

    What is the genus of lamprey, which is an example of Cyclostomata?

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

    What is unique about the circulatory system of Cyclostomes?

    <p>It is closed</p> Signup and view all the answers

    What is the primary function of the gill slits in Cyclostomes?

    <p>to exchange gases for respiration</p> Signup and view all the answers

    Which of the following is a characteristic of the body of Cyclostomes?

    <p>being devoid of scales</p> Signup and view all the answers

    What is the purpose of Cyclostomes' migration to freshwater?

    <p>to spawn</p> Signup and view all the answers

    What is the characteristic of the dorsal fin in lampreys?

    <p>it has one or two dorsal fins along their back</p> Signup and view all the answers

    What is the fate of Cyclostomes after spawning?

    <p>they die within a few days</p> Signup and view all the answers

    Which of the following is an example of Cyclostomata?

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

    What is the main function of the gill slits in Cyclostomes?

    <p>for respiration</p> Signup and view all the answers

    What is unique about the body of Cyclostomes?

    <p>they are devoid of scales and paired fins</p> Signup and view all the answers

    Where do Cyclostomes typically migrate to for spawning?

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

    What is the characteristic of the vertebral column in Cyclostomes?

    <p>it is made of cartilage</p> Signup and view all the answers

    What is the typical number of dorsal fins in lampreys?

    <p>one or two</p> Signup and view all the answers

    What happens to the larvae of Cyclostomes after metamorphosis?

    <p>they return to the ocean</p> Signup and view all the answers

    What is the primary function of the circular mouth in Cyclostomes?

    <p>To grasp onto hosts</p> Signup and view all the answers

    What is the purpose of the cartilaginous vertebral column in Cyclostomes?

    <p>To provide structural support for the body</p> Signup and view all the answers

    What is unique about the circulatory system of Cyclostomes?

    <p>It is closed</p> Signup and view all the answers

    Why do Cyclostomes migrate to freshwater?

    <p>To spawn</p> Signup and view all the answers

    What is the typical body shape of Cyclostomes?

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

    What is the function of the gill slits in Cyclostomes?

    <p>To facilitate respiration</p> Signup and view all the answers

    What is the primary function of the sucking mouth in Cyclostomes?

    <p>To attach to host fishes</p> Signup and view all the answers

    What is the characteristic of the body of Cyclostomes that allows them to move efficiently in the water?

    <p>The elongated body shape</p> Signup and view all the answers

    Which of the following is NOT a characteristic of Cyclostomes?

    <p>Presence of scales</p> Signup and view all the answers

    What is the purpose of the unique migration pattern of Cyclostomes?

    <p>To spawn</p> Signup and view all the answers

    What is the significance of the gill slits in Cyclostomes?

    <p>They are used for respiration</p> Signup and view all the answers

    What is the characteristic of the dorsal fin in lampreys, which is an example of Cyclostomata?

    <p>It is typically found in pairs</p> Signup and view all the answers

    What is the main reason why Cyclostomes migrate to freshwater?

    <p>To spawn</p> Signup and view all the answers

    What is the function of the caudal fin in lampreys?

    <p>To propel and steer in the water</p> Signup and view all the answers

    What is unique about the skeletal system of Cyclostomes?

    <p>It is cartilaginous</p> Signup and view all the answers

    What is the characteristic of the circulatory system of Cyclostomes?

    <p>It is closed</p> Signup and view all the answers

    What is the primary function of the gill slits in Cyclostomes?

    <p>To facilitate respiration</p> Signup and view all the answers

    What is the fate of Cyclostomes after they spawn?

    <p>They die within a few days</p> Signup and view all the answers

    Study Notes

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

    Characteristics of Cyclostomata

    • Cyclostomata is a class of Chordata
    • All living members of Cyclostomata are ectoparasites
    • Cyclostomes have an elongated body
    • Cyclostomes have 6-15 pairs of gill slits used for respiration
    • Cyclostomes have a circular, sucking mouth without jaws
    • Cyclostomes' bodies lack scales and paired fins
    • Cyclostomes have a cartilaginous cranium and vertebral column

    Physical Characteristics of Lampreys and Hagfish

    • Lampreys typically have one or two dorsal fins along their back
    • Caudal Fin in lamprey is located at the tail end, helping with propulsion and steering
    • Petromyzon is the genus of lamprey, an example of Cyclostomata
    • Myxine is the genus of hagfish, an example of Cyclostomata

    Life Cycle and Habitat

    • Cyclostomes are marine, but migrate to freshwater for spawning
    • Cyclostomes die within a few days after spawning
    • Cyclostomes' larvae return to the ocean after metamorphosis

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    Description

    This quiz covers the characteristics and features of Cyclostomata, a class of Chordata that includes ectoparasites that live on fish. Learn about their bodies, respiration, and other unique features.

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