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