Ch. 30 Bio

Front 1

members of the phylum chordata

Back 1

chordates

Front 2

an animal taht has, for at least some stage of its life, a dorsal, hollow nerve cord; a notochord; pharyngeal pouches, and a tail taht extends beyond the anus

Back 2

chordate

Front 3

a long, supporting rod that runs throught eh body just below the nerve cord

Back 3

notochord

Front 4

are paired structures in teh throat region

Back 4

pharyngeal pouches

Front 5

the backboard, which replaces the notochord in most developing vertebrates, is made of individual segments called

Back 5

vertebrae

Front 6

teht wo groups of nonvertebrate chordates are

Back 6

tunicates and lancelets

Front 7

aquatic vertebrates; most have paired fins, scales, and gills

Back 7

fishes

Front 8

the evolution of jaws and hte evotion of paired fins were important developments during the rise of

Back 8

fishes

Front 9

a strong tissue taht supports the body and is softer and more flexible than bone

Back 9

cartilage

Front 10

adaptations to aquatic life include :

Back 10

various modes of feeding, specialized structures for gas exchange, and paired fins for locomotion

Front 11

a large muscular chamber that serves as a one-way compartment for blood that is about to enter the ventricle

Back 11

atrium

Front 12

a thick-walled, muscular chamber, the actual pumping portion of the heart

Back 12

ventricle

Front 13

in most vertebrates, the - is responsible for all voluntary activities of the body

Back 13

cerebrum

Front 14

the - coordinates body movements

Back 14

cerebellum

Front 15

the - - controls teh functioning of many internal organs

Back 15

medulla oblongata

Front 16

most fishes can detect gentle current and vibrations in the water with sensitive receptors that form the

Back 16

lateral line system

Front 17

many bony fishes have an internal, gas-filled organ called a

Back 17

swim bladder

Front 18

fishes whose eggs hatch outside the mother's body are

Back 18

oviparous

Front 19

the eggs stay in the mother's body after internal fertilization

Back 19

oviviparous

Front 20

the embryos stay in the mother's body after internal fertilization, as they do in oviviparous

Back 20

viviparous

Front 21

when you consider their basic internal structure, all living fishes can be classified into three groups:

Back 21

jawless fishes, cartilaginous fishes, bony fishes

Front 22

= a vertebrate that, with some exceptions, lives in water as a larva and on land as an adult, breathes with lungs as an adult, has moist skint aht contains mucus glands, and lacks scales and claws

Back 22

amphibian

Front 23

early amphibians evolved several adaptations that helped them live at least part of their lives (where?)

Back 23

out of water

Front 24

an amphibian's eyes are large and can move around in their sockets. the surface of the eye is protected from damage under water and kept moist on land by a transparent - -

Back 24

nicitating membrane

Front 25

amphibians hear thorugh - - or eardrums located on each side of the head

Back 25

tympanic membranes

Front 26

most amphibian larvae and adults also have - - systems to detect water movement

Back 26

lateral line

Front 27

the three groups of amphibians alive today are

Back 27

salamanders, frogs and toads, and caecilians