ch 32 vertebrates study guide
sharks that are _ incubate their eggs within their mothers body
ovoviviparous
order _ includes the snakes
squamata
which structure is used to help regulate buoyancy of fish
swim bladder
order _ includes the turtles and tortoises
testudines
within the chordate classes, the unique characteristic of the class aves is
the feathers
echinoderms are unique because
their larvae are bilaterally symmetrical while adult is pentaraadially
mammals were descended from a group of reptiles known as
therapsids
convergent evolution resulted in placental and marsupial mammals with similar structure features
true
tunicates are _ in the phylum _
unchorodates, chordata
the most unique feature of the echinoderms is their
water vascular system
sea stars eat mostly
crustaceans and mollusks
an _ is a characteristic of an echinoderm
endoskeleton
all echinoderms are found
in marine habitats
the monotremesare an unusual group of mammals because they
lay eggs
snakes are closely related to
lizards
marsupials include the
opossum
which term can be applied to both monotremes and sharks
oviparous
most reptiles are _ and their fertilization is _
oviparous, internal
which characteristic best describes vertebrates
[a. vertebral column] b. blood containing hemoglobin c. four-chambered heart d. lungs e. live birth
echinoderms are related to chordates because the first opening to develop becomes the
anus
the first function of feathers was most likely
as color displays in courtship rituals
salamanders are members of the order
caudata
a fish w a cartilaginous skeleton and paired fins would be in the group
chondrichthyes
Class _ includes mostly extinct species and few current species such as feather stars and sea lilies
chrinoidea
the earliest mammals resembled small
dogs
hagfishes are differentiated from lampreys and all other fishes in that
hagfishes lack vertebrate
the earliest vertebrates _ jaws
lacked
urochordates are odd chordates, as typically only the _ show the basic chordate characteristics
larva
which term describes an animal that lays eggs
oviparous
birds are most closely related to
reptiles
in which group did the amniotic egg first evolve
reptiles
adult tunicates resemble _ and are _
sponges, filter feeders
which of the below are living descendants of the dinosaurs
birds
sea stars are primarily
carnivores
metamorphosis occurs in which of the following vertebrate classes
amphibia
the tetrapods include
amphibians, reptiles, birds, and mammals
lancelets are
filter feeders
echinoderms are characterized by _ symmetry in adults, a water vascular system, tube feet, and spiny skin
radial
deuterostomes re characterized by _ and _ cleavage
radial, indeterminate
spiny echidnas are unlike other mammals in that they
don't have nipples
the chordate notochord is a
dorsal longitudinal rod composed of cartilage
the chordate nerve chord is hollow and located _
dorsally
in _, neural crest cells gives rise to the nerves, head muscles, and cranium
vertebrates
