Deuterostomes Quiz
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Questions and Answers

What type of symmetry do Deuterostomes exhibit?

  • Asymmetry
  • Bilateral symmetry (correct)
  • Spherical symmetry
  • Radial symmetry

    • What becomes the anus in Deuterostomes?

  • Central disk
  • Medreporite
  • Mouth
  • Blastopore (correct)

    • Which taxon is included in Deuterostomes?

  • Cnidarians and poriferans
  • Echinoderms and chordates (correct)
  • Annelids and nematodes
  • Arthropods and mollusks

    • What is the characteristic feature of the digestive system in Echinoderms?

    <p>Mouth on oral side, stomach in central disk</p> Signup and view all the answers

    What type of nervous system do Echinoderms possess?

    <p>Simple, no brain, no ganglia</p> Signup and view all the answers

    What is the main mode of locomotion in Echinoderms?

    <p>Tube feet</p> Signup and view all the answers

    Which of the following is a chordate clade?

    <p>Cephalochordates (lancelets)</p> Signup and view all the answers

    What is the defining characteristic of urochordates (tunicates) among chordates?

    <p>Presence of a tunic covering the body</p> Signup and view all the answers

    Which group is a part of the vertebrates clade?

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

    What is the function of the water vascular system in Echinoderms?

    <p>Locomotion and feeding</p> Signup and view all the answers

    Which of the following is a type of Echinoderm?

    <p>Sea cucumber</p> Signup and view all the answers

    What is the predominant symmetry exhibited by adult Echinoderms?

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

    What characteristic do sea squirts display as larval forms?

    <p>Presence of all four features of chordates</p> Signup and view all the answers

    What is a distinguishing feature of cephalochordates like lancelets?

    <p>Full-length notochord</p> Signup and view all the answers

    Which group of animals has a well-developed circulatory system?

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

    What is a characteristic of lampreys?

    <p>Jawless and parasitic</p> Signup and view all the answers

    How did chondrichthyans evolve their jaws?

    <p>From gill arches</p> Signup and view all the answers

    What is a characteristic of ray-finned fish?

    <p>Bony skeleton</p> Signup and view all the answers

    What is a distinguishing feature of amphibians' reproduction?

    <p>Reproduction in water</p> Signup and view all the answers

    What characterizes amniotes?

    <p>Extra-embryonic membranes in the amniotic egg</p> Signup and view all the answers

    What distinguishes reptiles' skin from other animals?

    <p>Impermeable skin covered with scales</p> Signup and view all the answers

    What is a characteristic of birds' respiratory system?

    <p>Lung-like sacs for gas exchange</p> Signup and view all the answers

    What is a defining feature of mammals?

    <p>Mammary glands</p> Signup and view all the answers

    What distinguishes eutherians from other mammals?

    <p>Placental mammals with longer gestation periods</p> Signup and view all the answers

    Which of the following is a characteristic of the nervous system in Echinoderms?

    <p>Simple, no brain, no ganglia, nerve ring around the mouth, dorsal nerve net</p> Signup and view all the answers

    What is the predominant mode of locomotion in sea stars (starfish) among Echinoderms?

    <p>Tube feet</p> Signup and view all the answers

    What is the distinguishing feature of urochordates (tunicates) among chordates?

    <p>Adults are sessile filter feeders with a sac-like body structure</p> Signup and view all the answers

    What is a distinguishing feature of the water vascular system in Echinoderms?

    <p>It aids in movement and feeding</p> Signup and view all the answers

    What is a characteristic of the digestive system in Echinoderms?

    <p>It lacks a mouth and anus</p> Signup and view all the answers

    What characterizes amniotes?

    <p>They possess extra-embryonic membranes</p> Signup and view all the answers

    What is the defining characteristic of urochordates (tunicates) among chordates?

    <p>They have a free-swimming adult form</p> Signup and view all the answers

    What is the predominant symmetry exhibited by adult Echinoderms?

    <p>Radial symmetry</p> Signup and view all the answers

    What becomes the anus in Deuterostomes?

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

    What is a distinguishing feature of mammals' reproduction?

    <p>Longer gestation periods</p> Signup and view all the answers

    What is a characteristic of birds' respiratory system?

    <p>Air sacs for efficient gas exchange</p> Signup and view all the answers

    What is a distinguishing feature of reptiles' skin?

    <p>Impermeable skin covered with scales</p> Signup and view all the answers

    What is a distinguishing feature of amphibians' reproduction?

    <p>Metamorphosis from gills to lungs</p> Signup and view all the answers

    What is a characteristic of lampreys?

    <p>Have a cartilaginous skeleton</p> Signup and view all the answers

    What is a distinguishing feature of cephalochordates like lancelets?

    <p>Full-length notochord and small tubular heart</p> Signup and view all the answers

    Study Notes

    Classification and Characteristics of Marine Animals

    • Sea squirts are mostly sessile as adults and undergo metamorphosis, with larval forms displaying all four features of chordates.
    • Cephalochordates, such as lancelets, have a notochord that extends the full length of their body and possess a small tubular heart.
    • Vertebrates have a well-developed circulatory system, and examples include lampreys, chondrichthyans, ray-finned fish, amphibians, and amniotes, each with distinct characteristics.
    • Lampreys are jawless, have a primitive cartilaginous skeleton, and mostly parasitic.
    • Chondrichthyans, including sharks and rays, have evolved jaws from gill arches and possess a two-chambered heart.
    • Ray-finned fish have a bony skeleton, scales for protection, and a swim bladder for buoyancy.
    • Amphibians have lung-like sacs for gas exchange and reproduce in water, with some species undergoing metamorphosis from gills to lungs.
    • Amniotes, which include reptiles, birds, and mammals, are characterized by extra-embryonic membranes in the amniotic egg.
    • Reptiles are fully terrestrial, have impermeable skin covered with scales, and rely on external heat sources for thermoregulation.
    • Birds have a remodeled body for flight, with hollow bones, modified wings, and a four-chambered heart.
    • Mammals are characterized by mammary glands, hair for insulation, and sensory features such as whiskers for protection and camouflage.
    • Within mammals, there are prototherians (lay eggs), marsupials (continue development in a ventral pouch), and eutherians (placental mammals with longer gestation periods).

    Classification and Characteristics of Marine Animals

    • Sea squirts are mostly sessile as adults and undergo metamorphosis, with larval forms displaying all four features of chordates.
    • Cephalochordates, such as lancelets, have a notochord that extends the full length of their body and possess a small tubular heart.
    • Vertebrates have a well-developed circulatory system, and examples include lampreys, chondrichthyans, ray-finned fish, amphibians, and amniotes, each with distinct characteristics.
    • Lampreys are jawless, have a primitive cartilaginous skeleton, and mostly parasitic.
    • Chondrichthyans, including sharks and rays, have evolved jaws from gill arches and possess a two-chambered heart.
    • Ray-finned fish have a bony skeleton, scales for protection, and a swim bladder for buoyancy.
    • Amphibians have lung-like sacs for gas exchange and reproduce in water, with some species undergoing metamorphosis from gills to lungs.
    • Amniotes, which include reptiles, birds, and mammals, are characterized by extra-embryonic membranes in the amniotic egg.
    • Reptiles are fully terrestrial, have impermeable skin covered with scales, and rely on external heat sources for thermoregulation.
    • Birds have a remodeled body for flight, with hollow bones, modified wings, and a four-chambered heart.
    • Mammals are characterized by mammary glands, hair for insulation, and sensory features such as whiskers for protection and camouflage.
    • Within mammals, there are prototherians (lay eggs), marsupials (continue development in a ventral pouch), and eutherians (placental mammals with longer gestation periods).

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    Description

    Test your knowledge of marine animal classification and characteristics with this quiz. Explore the diverse features and traits of sea squirts, cephalochordates, vertebrates, and specific groups such as lampreys, chondrichthyans, ray-finned fish, amphibians, amniotes, reptiles, birds, and mammals. Understand the unique attributes that define each group, from skeletal structures to reproductive strategies.

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