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99 Cards in this Set
- Front
- Back
4 defining features of chordates
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-Dorsal hollow nerve chord
-pharyngeal gill slits -post anal tail -notochord |
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9 classes of chordata
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-urochordata
-cephalochordata -agnatha -chondrichthyes -osteichthyes -amphibia -reptilia -aves -mammalia |
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sea peach is what phylum and class
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chordata-urochordata
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3 classes of fish
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agnatha, chondrichthyes, osteichthyes
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this class is made of all cartilage
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agnatha
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agnatha use _____ for gas exchange
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gills
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agnatha ______ fins are absent
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ventral
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1 or 2 semicircular canals are used for _____ and ______ in agnatha
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navigation, balance
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chondrichthyes skeleton is made completely of
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cartilage
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Sharks are what phylum and class
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chordata, chondrichthyes
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Sharks maintain buoyancy chiefly by means of the _________ in their _____
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squalene, livers
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squalene is chemically similar to _______
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cholesterol
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squalene, as a _________, is less dense than water so it _______-
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lipid, floats
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sharks locomotion is largely dependent on the thrust generated by the action of it's ________ ________ ___
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heterocercal, caudal, fin
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the paired _____ _____ in sharks can be used to navigate veritcally in the water
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pectoral fins
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sharks have ______ scales that have enamel on them
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placoid
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sharks alimentary canals have a ___ shaped stomach and a short intestine which houses a ______ valve
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J, spiral
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oviparous means
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lay unfertilized eggs, that get fertilized outside the mother
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viviparous means
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give birth to live young
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ovoviviparous means
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lay eggs that are already fertile
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chondrichthyes reproduction
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some are oviparous, others are viviparous and still others are considered ovoviviparous
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the teeth of sharks are actually modified _______ scales
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placoid
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sharks skin contains _____ glands and _____ ______
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mucus, placoid scales
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osteichthyes skeletons are made entirely of
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bone
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osteichythes maintain buoyancy by means of a
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swim bladder
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how does a swim bladder work
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it inflates or deflates with gases
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Osteichthyes have a _____ tail, which means it is symmetrical
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homocercal
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all osteichthyes are _____ finned except one extant species which is lobe finned which is the ______
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ray, coelacanth
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______ is in the fin of lobe-finned species
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skeleton
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lampreys and hagfishes are part of what class
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agnatha
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4 defining features of chordates
|
-Dorsal hollow nerve chord
-pharyngeal gill slits -post anal tail -notochord |
|
9 classes of chordata
|
-urochordata
-cephalochordata -agnatha -chondrichthyes -osteichthyes -amphibia -reptilia -aves -mammalia |
|
sea peach is what phylum and class
|
chordata-urochordata
|
|
3 classes of fish
|
agnatha, chondrichthyes, osteichthyes
|
|
this class is made of all cartilage
|
agnatha
|
|
agnatha use _____ for gas exchange
|
gills
|
|
agnatha ______ fins are absent
|
ventral
|
|
1 or 2 semicircular canals are used for _____ and ______ in agnatha
|
navigation, balance
|
|
chondrichthyes skeleton is made completely of
|
cartilage
|
|
Sharks are what phylum and class
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chordata, chondrichthyes
|
|
sharks maintain buoyancy by ______ in their _____
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squalene, livers
|
|
squalene is chemically similar to _______
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cholesterol
|
|
as a ______ squalene is less dense than water, therefore it _______
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lipid, floats
|
|
the locomotion of a shark is largely dependent upon the thrust generated by the action of its _______ _____ ___
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heterocercal caudal fin
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|
the paired ____ ____ in sharks can be used to navigate vertically in the water
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pectoral fins
|
|
______ scales have enamel on them
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placoid
|
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the alimentary canal of a shark consists mainly of a __ shaped stomach and a short intestine which houses a _____ _____
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J, spiral valve
|
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oviparous
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lay unfertilized eggs, the eggs get fertilized outside the mother
|
|
viviparous
|
give birth to live young
|
|
ovoviviparous
|
lay eggs that are already fertile
|
|
chondrichthyes reproduction
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some are oviparous, others are viviparous, and still others are ovoviviparous
|
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chondrichthyes skin contain ______ glands and ____ scales
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mucus, placoid
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the teeth of a shark are actually modified _____ ____
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placoid scales
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lampreys and hagfishes are what phylum and class
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chordata, agnatha
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sharks, rays and skates are what phylum and class
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chordata, chondrichthyes
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trout, bass, catfish and swordfish are all part of what class
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osteichthyes
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osteichthyes skeleton is made entirely of
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bone
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osteichthyes maintain buoyancy by means of a
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swim bladder
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swim bladders work by
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inflating or deflating with gases
|
|
osteichthyes have a ______ tail, which means it is symmetrical
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homocercal
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osteichthyes are all _____ finned except one extant species that is ______ finned
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ray, lobe
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the only osteichthye that has skeleton in it's fins (lobe-finned)
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coelacanth
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the orders urodela and anuria are part of what class
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amphibia
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salamanders and newts are what class and order
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amphibia, urodela
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frogs and toads are part of what class and order
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amphibia, anuria
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amphibians have ____ to protect from UV light
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melanin
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amphibians use _______ pressure inflation for gas exchange
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positive
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amphibians use a ________ to push air in
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bucopharynx
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the skin of amphibians lack _______
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scales
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_______ were the first terrestrial vertebrates appearing ______ million years ago
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amphibians, 325-350
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reptilia's scales are made of ______
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keratin
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reptiles have __ occipital condyle
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one
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occipital condyle is
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the joint b/w the vertebrate and skull
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most reptiles have a ___ chambered heart
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3
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the only reptile to have an incomplete 4 chambered heart
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crocodiles
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reptiles use ______ pressure inflation
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negative
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some reptiles use the _____ as a secondary respiratory organ
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cloacca
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in reptiles the ______ organs are used for scent
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jacobsen's
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pit organs are used for ____ and located
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infrared and heat sensing, between the eyes and nostrils
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reptiles have _____ fertilization
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internal
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some reptiles are ______, most _______ and FEW _____
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ovovivparous, oviparous, viviparous
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this class' eggs are covered with calcerous or leathery shells
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reptiles
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reptiles' bodies are covered with scales made of _____ which is a ______
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keratin, protein
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reptiles are ___thermic
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ecto
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aves skeleton are made of
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extremely light bone
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most of aves' _____ are fused together
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vertebrate
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aves use ______ and/or _____ for grinding food
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crop, gizzard
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aves nitrogenous waste exits through the
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cloacca
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3 groups of mammalia
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placental mammals, marsupials, monotremes
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2 properties that define mammals
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fur/hair, mammary glands
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mammals have _____teeth which mean
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diphyodont, differentiated
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mammals have a _____that separates the thoracic and abdominal cavities
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diaphragm
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mammals have ____ kidneys
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metanephric
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3 type of glands in mammals
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suderiferous, sebaceous, ceruminous
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2 methods of thermoregulation in mammals
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sweat glands and hair/fur
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humans order
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primates
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humans family
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hominidae
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humans genus
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homo
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humans species
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homo sapiens
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