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    General Biology and Classification

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    The platypus and the spiny anteater are examples of which mammalian group?
    a. marsupials
    b. monotremes
    c. placentals
    d. hominids

    Almost all invertebrate chordates are
    a. predators
    b. parasites
    c. filter feeders
    d. scavengers

    Which of the following is not a characteristic chordate feature?
    a. a pharynx
    b. a notochord
    c. a nerve cord
    d. a pseudocoelom

    Which of the following is not a subphyla of the phylum Chordata?
    a. Urochordata
    b. Hemichordata
    c. Cephalochordata
    d. Vertebrata

    The duck-billed platypus
    a. passes gametes, feces, and urine through the same duct
    b. gives birth to live young
    c. is found in Africa and Australia
    d. is active primarily during the day

    The placoderms
    a. include the sharks and rays
    b. were the earliest jawless fishes
    c. became extinct during the Carboniferous period
    d. gave rise to the amphibians

    The invasion of the Great Lakes by ______ has decimated the lakes' trout populations.
    a. coelocanths
    b. lampreys
    c. sturgeons
    d. ratfishes

    The only living lobe-finned fish is the
    a. lamprey
    b. hagfish
    c. coelocanth
    d. chiamera

    The amphibians arose from ______ during the ______.
    a. placoderms; Cambrian
    b. lungfishes; Jurassic
    c. lobe-finned fishes; Devonian
    d. hagfishes; Silurian

    a. have external fertilization
    b. produce amniote eggs
    c. gave rise to the amphibians
    d. are the most diverse vertebrate group

    Only birds
    a. have a cloaca
    b. lay amniote eggs
    c. have feathers
    d. have a four-chambered heart

    Which of the following is not a mammalian lineage?
    a. the monotremes
    b. the synapsids
    c. the marsupials
    d. the therians

    Mammals did not arise until after the extinction of the dinosaurs.
    a. true
    b. false

    The most species-rich vertebrate group are the
    a. mammals
    b. reptiles
    c. amphibians
    d. fishes

    The vertebrate jaw first appeared in
    a. mammals
    b. reptiles
    c. amphibians
    d. fishes

    Lungs evolved as outpouchings of the :
    a. swim bladder
    b. stomach
    c. esophagus
    d. blood vessels

    The caecilians are a small group of
    a. mammals
    b. reptiles
    c. amphibians
    d. fishes

    The ______ can use their skin as a respiratory surface.
    a. mammals
    b. reptiles
    c. amphibians
    d. birds

    Reptiles resemble _____ in ______.
    a. fish; not being able to leave the water
    b. ostracoderms; lacking jaws
    c. amphibians; relying on water for reproduction
    d. birds; producing amniote eggs

    The first vertebrates with a four-chambered heart fully separated into two halves were the
    a. birds
    b. amphibians
    c. crocodilians
    d. monotremes

    The ______ gave rise to the mammals.
    a. crocodilians
    b. therapsids
    c. tuataras
    d. anapsids

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    Solution Preview

    The platypus and spiny anteater (echidna) are included in the group monotremata (meaning they pass gametes, feces, and urine through one cloacal sphincter. Marsupials include kanagaroos and possoms. Placentals include all placental animals (eutheria). Hominids are of the hominidae family in the primate order.

    Invertebrate chordates including the tunicates and sea squirts (Urochordata) and lancelets (Cephalochordata) are filter feeders.

    Chordates: do have a pharynx or pharynx pouches, notochord, nerve cord, but have a TRUE coelom

    Urochordata is a subphylum of chordata including sea squirts and tunicates. Hemichordata is a phylum including acorn worms. Cephalochordata is a subphyum of chordata including lancelets. Vertebrata is a subphylum of chordata.

    The ...