Biodiversity Test 4

Front 1

From which phylum are these two classes:

Class Oligochaeta

Class Hirudinae

Back 1

Phylum Annelida

Front 2

What is class Oligochaeta

Back 2

earthworms and freshwater worms

Front 3

what class is made up of earthworms and freshwater worms?

Back 3

Class Oligochaeta

Front 4

Lumbricus is the most common genus in what class?

Back 4

Class Oligochaeta

Front 5

There are over 3100 spp in this class and they are both terrestrial and freshwater forms

Back 5

Class Oligochaeta

Front 6

Highly developed metamerism is a characteristic of this class. They also possess 1-2 setae per somite

Back 6

Class Oligochaeta

Front 7

what are circular extensions of the epidermis that are also known as bristles. important in terrestrial worms bc it anchors them to the earth

Back 7

setae

Front 8

peristaltic movement is a characteristic of this class.

Back 8

Class Oligochaeta

Front 9

This class lacks eyes, possess ocelli

Back 9

Class Oligochaeta

Front 10

a type of "eye" that can only distinguish between light and dark

Back 10

ocelli

Front 11

The class Oligochaeta is monoecious or dioescious?

Back 11

monoecious

Front 12

Which class has a "road map" where each segment is an indicator of internal anatomy?

Back 12

Class Oligochaeta

Front 13

This class has specialization because of a complete digestive tract as well as nephridia

Back 13

Class Oligochaeta

Front 14

What does class Oligochaeta have that allows for specialization?

Back 14

a complete digestive tract

Front 15

This class posses 5 hearts

Back 15

Class Oligochaeta

Front 16

What is the Class Hirudinae?

Back 16

Leeches

Front 17

Leeches are part of which class?

Back 17

Class Hirundinae

Front 18

This class has 1 or 2 suckers on each end that they use to "walk" like an inchworm

Back 18

Class Hirudinae

Front 19

members of this class are ectoparasites but can also be detrivores, and sometimes predators

Back 19

Class Hirudinae

Front 20

This class in the Phylum Annelida does NOT have setae or parapodia. They also have a reduced coelem

Back 20

Class Hirudinae

Front 21

members of this class are monoecious and dioecious. they use hypodermic impregnation.

Back 21

Class Hirudinae

Front 22

This class uses hirudin as an anticoagulant.

Back 22

Class Hirudinae

Front 23

this is an anticoagulant similar to heparin.

Back 23

hirudin

Front 24

This class can estivate

Back 24

class Hirudinae

Front 25

similar to hibernation, leeches will curl up in a ball and shut their metabolic rate down. This is called..?

Back 25

estivating

Front 26

what is the largest species of Class Hirudinae? it was used by doctors for blood letting

Back 26

Hirudo medicinalis

Front 27

In this class, the number of segments on the outside is not reflective of the number of segments on the inside. Inside always has 33-34.

Back 27

Class Hirudinae

Front 28

Phylum Arthropoda has four subphylums called:

Back 28

Subphylum Trilobitomorpha

Subphylum Uniramia

Subphylum Crustacea

Subphylum Chelicerata

Front 29

Subphylums Trilobitomorpha, Uniramia, crustacea, and chelicerata belong to which phylum?

Back 29

Phylum Arthropoda

Front 30

Members of this phylum are bilateral, triploblastic, with a segmented body (both internally and externally)

Back 30

Phylum Arthropoda

Front 31

Tagmosis (fusion of metameric body plan) is a characteristic of this Phylum?

Back 31

Phylum Arthropoda

Front 32

In this phylum, the cuticle forms a rigid exoskeleton composed of chitin

Back 32

Phylum Arthropoda

Front 33

What is a mucopolysaccharide that binds to calcium to become the hard exoskeleton in the phylum Arthropoda?

(Mastax and other things are made of Chitin)

Back 33

Chitin

Front 34

this phylum posses jointed appendages which also give it it's name

Back 34

Phylum Arthropoda

Front 35

This phylum usually has a pair of compound eyes, although some may also have ocelli as well or in place of a compound eye.

Back 35

Phylum Arthropoda

Front 36

Compound eyes give visual acuity. What are the individual facets of a compound eye called?

Back 36

ommatidia

Front 37

Members of this phylum are coelomate with a complete, well-developed gut

Back 37

Phylum Arthropoda

Front 38

members of what phylum have an open circulatory system called a hemocoel?

Back 38

phylum Arthropoda

Front 39

what is it called when the blood of a circulatory system is not totally confined to the vessels throughout the body

Back 39

hemocoel

Front 40

With hemocoel, the spaces where the blood bathes the tissue directly are called what?

Back 40

sinuses

Front 41

members of this phylum have a well-developed nervous system and a brain with three different parts called a tricerebrum

Back 41

phylum arthropoda

Front 42

members of the phylum arthropoda have what type of brain

Back 42

tricerebrum, 3 parts

Front 43

members of this phylum lack functional cilia (except in the sperm of some groups) and they are arranged in a 9+0 arrangement

Back 43

phylum arthropoda

Front 44

members of this phylum grow by molting called ecdysis

Back 44

phylum arthropoda

Front 45

when an organism grows by molting, it is called

Back 45

ecdysis

Front 46

what happens immediately following molting in arthropods? describe the process

Back 46

they have to hide for a few days while the proteins get linked and harden the new shells

this hardening is called tanning and scleritizing

Front 47

members of the phylum arthropoda are monoecious or dioecious?

Back 47

dioecious

Front 48

the fusion of segments into functional units is called

Back 48

tagmosis

Front 49

insects, crabs, spiders, ticks, etc are all members of what phylum?

Back 49

phylum arthropoda

Front 50

Subphylum Trilobitomorpha is in what phylum?

Back 50

phylum arthropoda

Front 51

members of this subphylum are marine arthropods that inhabit primarily shallow seas

Back 51

subphylum trilobitomorpha

Front 52

members of this subphylum have a distinct head called a cephalon with antennae that is fused to the posterior portion of the body turned the pygidium

Back 52

subphylum trilobitomorpha

Front 53

name the three sections that make up the body of a trilobite

Back 53

cephalon, thorax, pygidium

Front 54

members of this subphylum have two well-developed eyes, possibly compound based on fossil evidence

Back 54

subphylum trilobitomorpha

Front 55

members of this subphylum have 4 pairs of appendages

Back 55

subphylum trilobitomorpha

Front 56

the members of this subphylum are extinct. the body made of chitin provided excellent fossils.

Back 56

subphylum trilobitomorpha

Front 57

we know this subphylum better than any group because of extensive fossil records

Back 57

subphylum trilobitomorpha

Front 58

a major catastrophic event which causes mass extinctions are found as what?

Back 58

mortality plates

Front 59

the subphylum uniramia belongs under which phylum?

Back 59

phylum arthropoda

Front 60

the appendages of members in this subphylum are all multiarticulate and uniramous

Back 60

subphylum uniramia

Front 61

a uniramous leg is made up of

Back 61

a series of segments that are attached end to end

Front 62

members of this subphylum have a head with antennae and mandibles and various numbers of feeding appendages depending upon the group

Back 62

subphylum uniramia

Front 63

name three classes in subphylum uniramia

Back 63

class myriapoda: subclass chilopoda

class myriapoda: subclass diplopoda

class insecta

Front 64

what is a whole-limb jaw with a single biting surface at the tip called?

Back 64

mandible

Front 65

members of what subphylum possess mandibles

(example: ants)

Back 65

subphylum uniramia

Front 66

members of this subphylum exchange gas by the tracheal system with spiracles

(example: grasshopper)

Back 66

subphylum uniramia

Front 67

members of this subphylum use malphigian tubules for excretion

Back 67

subphylum uniramia

Front 68

members of subphylum uniramia use what like kidneys for excretion?

Back 68

malphigian tubules

Front 69

most of the members of this subphylum have compound eyes along with ocelli

Back 69

subphylum uniramia

Front 70

members of the subphylum uniramia are primarily monoecious or dioecious?

Back 70

dioecious

Front 71

name two subclasses in the class myriapoda

Back 71

subclass chilopoda

subclass diplopoda

Front 72

centipedes belong in which subclass?

Back 72

class myriapoda: subclass chilopoda

Front 73

millipedes belong in which subclass?

Back 73

class myriapoda: subclass diplopoda

Front 74

members of this subclass of myriapoda are active predators

Back 74

subclass chilopoda

Front 75

members of this subclass of myriapoda have poisonous claws

Back 75

subclass chilopoda

Front 76

members of this subclass of myriapoda have one leg per somite

Back 76

subclass chilopoda

Front 77

members of this subclass of myriapoda have legs that number from 15-174 pairs

Back 77

subclass chilopoda

Front 78

what has a prehensile stinger on it's posterior end?

Back 78

centipedes

Front 79

members of this subclass of myriapoda are herbivorous scavengers, they eat detritus

Back 79

subclass diplopoda

Front 80

members of this subclass of myriapoda have two legs per somite

Back 80

subclass diplopoda

Front 81

members of this subclass are generally slow moving and use metachromal motion

Back 81

subclass diplopoda

Front 82

members of this subclass have warning coloration and excrete hydrocyanic acid which can cause blindness

Back 82

subclass diplopoda

Front 83

hexapoda is another name for which class?

Back 83

class insecta

Front 84

members of this class consist of a head, thorax, and an abdomen (tagmata, aka a metameric body plan)

Back 84

class insecta

Front 85

members of this class have specialized mouthparts

Back 85

class insecta

Front 86

members of this class have a trachea for gas exchange and malphigian tubules for osmoregulation/excretion

Back 86

class insecta

Front 87

members of the class insects are monoecious or dioecious?

Back 87

dioecious

Front 88

members of this class all have 6 legs

Back 88

class insecta

Front 89

members of this class go through metamorphosis (hemimetabolous and holometabolous)

Back 89

class insecta

Front 90

in this type of metamorphosis, the juveniles are called nymphs and they resemble the adults but are missing features like wings

Back 90

hemimetabolous

Front 91

in this type of metamorphosis, the juveniles are called larvae and do no resemble the adults

Back 91

holometabolous

Front 92

Bees, flies, walking sticks, mantis all belong to what class

Back 92

class insecta

Front 93

in class insecta, where does the air come into the organism and where is the oxygen exchanged?

Back 93

it comes in through the spiracle, exchanges in trachea

Front 94

tracheids have tiny circular rings that act like hyaline cartilage that do what?

Back 94

keep them open

Front 95

members of this class have an extremely well-developed brain and digestive system

Back 95

class insecta

Front 96

insect orders:

Lepidoptera

Back 96

butterflies, moths

Front 97

insect orders:

coleoptera

Back 97

beetles

Front 98

insect orders:

Isoptera

Back 98

termites

Front 99

insect orders:

Odonata

Back 99

dragonflies

Front 100

insect orders:

Orthoptera

Back 100

grasshoppers, crickets

Front 101

insect orders:

Hymenoptera

Back 101

bees, wasps, ants

Front 102

insect orders:

Homoptera

Back 102

cicadas

Front 103

insect orders:

Hemiptera

Back 103

"true bugs" (stink bugs)

Front 104

insect orders:

Diptera

Back 104

flies

Front 105

insect orders:

Mantoda

Back 105

praying mantis

Front 106

this order of insects is the largest order and the first to take flight

Back 106

order coleoptera

Front 107

this order of insects are truly social (have a caste system)

Back 107

order isoptera

Front 108

this order of insects is the oldest and most primitive

Back 108

order odonata

Front 109

this order of insects is the longest living invertebrate in the animal kingdom

Back 109

order homoptera

Front 110

the name of this order means "two wings"

Back 110

order diptera

Front 111

the body of this subphylum is composed of a head and thorax that are fused and termed a cephalothorax, have a distinct abdomen present

Back 111

subphylum crustacea

Front 112

the fused head and thorax of the body of phylum arthropoda is called

Back 112

a cephalothorax

Front 113

what is the sulfur protein that makes up the joints of arthropods that gives them elasticity

Back 113

resilin

Front 114

the mandibles of this subphylum are multi articulate limbs and are considered gnathoblastic: rolling jaws rather than biting jaws

Back 114

subphylum crustacea

Front 115

mandibles that are rolling jaws rather than biting jaws are called

Back 115

gnathoblastic

Front 116

members of this subphylum use gills for gas exchange rather than a trachea

Back 116

subphylum crustacea

Front 117

members of this subphylum use nephridia for excretion (green gland in crawfish is used to process nitrogenous waste too)

Back 117

subphylum crustacea

Front 118

members of this subphylum have compound eyes in most taxa with ocelli in some or both

Back 118

subphylum crustacea

Front 119

members of the subphylum crustacea are monoecious, dioecious, or both?

Back 119

both

Front 120

what can you do to induce molting in subphylum crustacea?

Back 120

cut the eyestalk off

Front 121

crawfish are an example of what subphylum?

Back 121

subphylum crustacea

Front 122

subphlum chelicerata falls under what phylum?

Back 122

phylum arthropoda

Front 123

what are some examples of subphylum chelicerata

Back 123

spiders, scorpions, horseshoe crabs

Front 124

spiders, scorpions and horseshoe crabs fall under what subphylum

Back 124

subphylum chelicerata

Front 125

members of this subphylum have a body composed of two tagmata: there prosoma and the opisthoma (sometimes referred to as the cephalothorax and the abdomen)

Back 125

subphylum chelicerata

Front 126

members of the subphylum chelicerata have a body composed of two tagmata called?

Back 126

prosoma and opisthoma

Front 127

list the three appendages of the prosoma

Back 127

chelicerae (jaws)

pedipalps (sensory and sometimes reproductive appendage)

4 pairs of walking legs

Front 128

Members of this subphylum have NO ANTENNAE

Back 128

subphylum chelicerata

Front 129

members of this subphylum use book lungs or trachea for gas exchange. their appendages are multi articulate

Back 129

Subphylum chelicerata

Front 130

members of this subphylum use coxal glands and/or malphigian tubules for excretion

Back 130

Subphylum chelicerata

Front 131

where are the coxal glands of subphylum chelicerata located?

Back 131

the base of the appendages

Front 132

members of what subphylum have compound eyes, modified eyes, and ocelli

(this is the only group with modified eyes)

Back 132

Subphylum chelicerata

Front 133

member of the subphylum chelicerata are monoecious or dioecious

Back 133

dioecious

Front 134

class merostomata belongs to what phylum/subphylum

Back 134

phylum arthropoda subphylum chelicerata

Front 135

subclass xiphosura belongs to what class?

Back 135

class merostomata

Front 136

horseshoe crabs and king crabs belong to what subclass?

Back 136

subclass xiphosura

Front 137

all members of this subclass are marine

Back 137

subclass xiphosura

Front 138

members of this subclass are common along most tropical to subtropical coastlines

Back 138

subclass xiphosura

Front 139

members of this subclass all have trilobite larva

Back 139

subclass xiphosura

Front 140

members of this subclass are referred to as living fossils

Back 140

subclass xiphosura

Front 141

members of this subclass mate by the phases of the moon

Back 141

subclass xiphosura

Front 142

members of this subclass have simple and compound eyes

Back 142

subclass xiphosura

Front 143

members of this subclass have book gills

Back 143

subclass xiphosura

Front 144

class arachnida belongs to what subphylum

Back 144

subphylum chelicerata

Front 145

spiders, ticks, mites, scorpions are common members of this class

Back 145

class arachnida

Front 146

members of this class have a prosoma (anterior tagma) with four pairs of legs

Back 146

class arachnida

Front 147

members of this class have an opisthoma (posterior tagma) that lacks appendages

Back 147

class arachnida

Front 148

members of this class have no compound eye

Back 148

class arachnida

Front 149

members of this class consist of mostly terrestrial with a few freshwater species

Back 149

class arachnida

Front 150

name three orders and their members of the class arachnida

Back 150

order araneae: spiders

order scorpionide: scorpions

order acari: ticks, mites

Front 151

what is chelicerae

Back 151

jaws

Front 152

what are pedipalps for?

Back 152

mating

Front 153

what does the poison glands of class arachnida do? how do they function?

Back 153

breaks down tissue and subdues prey

Front 154

members of this class have book lungs similar to king crabs

Back 154

class arachnida

Front 155

what is the organ that spins silk called?

Back 155

spinnerets

Front 156

the jaws of tarantulas move ______ while the jaws of lesser spiders move ___________

Back 156

up and down, in and out

Front 157

the spiders in webs are mostly what sex?

Back 157

female

Front 158

describe the mating pattern of spiders

Back 158

male spider puts sperm in web ball and uses pedipalps to stick it into female. female tries to eat male

Front 159

name 5 classes that are in the phylum echinodermata

Back 159

class asteroidea

class crinoidea

class holothuroidea

class ophiuroidea

class echinoidea

Front 160

starfish, sea urchins, sea cucumbers, and sand dollars make up what phylum?

Back 160

phylum echinodermata

Front 161

members of this phylum have a calcareous endoskeleton composed of ossicles

Back 161

phylum echinodermata

Front 162

what is the body of members of phylum echinodermata consist of?

Back 162

calcareous endoskeleton composed of ossicles

Front 163

members of this phylum have pluteus larvae

Back 163

phylum echinodermata

Front 164

the adults of this phylum are pentamerous

Back 164

phylum echinodermata

Front 165

members of this phylum have a water vascular system composed of fluid-filled canals with tube feet

Back 165

phylum echinodermata

Front 166

members of this phylum have no excretory organs

Back 166

phylum echinodermata

Front 167

members of this phylum have a complex, ring-shaped nervous system

Back 167

phylum echinodermata

Front 168

describe the nervous system of phylum echinodermata

Back 168

complex and ring-shaped

Front 169

members of the phylum echinodermata are only found in what environments?

Back 169

marine

Front 170

members of this phylum have cirri

Back 170

phylum echinodermata

Front 171

what do the members of phylum echinodermata walk with

Back 171

cirri

Front 172

sea stars and starfish belong to what class

Back 172

class asteroidea

Front 173

the bodies of this class are stellate

Back 173

class asteroidea

Front 174

members of this class have a well-organized central disc

Back 174

class asteroidea

Front 175

members of this class are pentamerous

Back 175

class asteroidea

Front 176

members of this class primarily feed on clams and have an eversible stomach

Back 176

class asteroidea

Front 177

members of this class can regenerate as long as there is a piece of the central disc left

Back 177

class asteroidea

Front 178

where are the eyespots located on the class asteroidea

Back 178

on the end of each arm

Front 179

sea lilies belong in what class

Back 179

class crinoidea

Front 180

this is the most primitive class among the echinodermata

Back 180

class crinoidea

Front 181

members of this class are suspension feeders

Back 181

class crinoidea

Front 182

members of this class live either in the pelagic zone or the benthic zone with benthic more common

Back 182

class crinoidea

Front 183

members of this class have an extensive fossil record

Back 183

class crinoidea

Front 184

sea cucumbers are members of what class

Back 184

class holothuroidea

Front 185

members of this class are both deposit and suspension feeders

Back 185

class holothuroidea

Front 186

members of this class have no spines or arms

Back 186

class holothuroidea

Front 187

members of this class have a unique respiratory tree for gas exchange

Back 187

class holothuroidea

Front 188

members of this class have cuverion tubules and can eviscerate their gut when threatened

Back 188

class holothuroidea

Front 189

brittle or serpent stars make up this class

Back 189

class ophuriodea

Front 190

members of this class have a stellate body and have 5 or more arms

Back 190

class ophuriodea

Front 191

members of this class have arms that are clearly set off from the central disc

Back 191

class ophuriodea

Front 192

the abulacral groove is closed (solid) in this class

Back 192

class ophuriodea

Front 193

members of this class have pointed podia and pull themselves along

Back 193

class ophuriodea

Front 194

members of this class are anus lacking

Back 194

class ophuriodea

Front 195

sea urchins and sand dollars make up what class?

Back 195

class echinoidea

Front 196

members of this class have fused ossicles with an endoskeleton called a test

Back 196

class echinoidea

Front 197

members of this class have a unique chewing device termed aristotles lantern

Back 197

class echinoidea

Front 198

members of this class have no arms. the body is round or disc-shaped

Back 198

class echinoidea

Front 199

the globular pedicellaria on this class can contain poison for predator avoidance

Back 199

class echinoidea

Front 200

members of this phylum are bilaterally symmetrical and are coelomate

Back 200

phylum mollusca

Front 201

members of this phylum have an open circulatory system (like arthropods)

Back 201

phylum mollusca

Front 202

members of this phylum have shells

Back 202

phylum mollusca

Front 203

members of this phylum have a well developed heart

Back 203

phylum mollusca

Front 204

members of this phylum have large, well-defined muscular foot with a flattened creeping sole

Back 204

phylum mollusca

Front 205

members of this phylum have a buccal region with a radula

Back 205

phylum mollusca

Front 206

members of this phylum have complex nephridia (similar to annelid worms)

Back 206

phylum mollusca

Front 207

members of this phylum have trochophore larva (like annelid larvae)

Back 207

phylum mollusca

Front 208

name the 5 classes in phylum mollusca

Back 208

class bivalvia

class cephalopoda

class polyplacophora

class gastropoda

class monoplacophora

Front 209

clams, scallops and oysters make up what class?

Back 209

class bivalvia

Front 210

this class consists of two-valved mollusks

Back 210

class bivalvia

Front 211

members of this class are suspension feeders and their shell is produced by the mantle

Back 211

class bivalvia

Front 212

members of this class in the phylum mollusca have no radula

Back 212

class bivalvia

Front 213

members of the class bivalve have strong gills called

Back 213

ctenidia

Front 214

which class possesses ctenidia

Back 214

class bivalvia

Front 215

octopods, squids, cuttlefishes, nautilus make up what class

Back 215

class cephalopoda

Front 216

members of this class have a reduced shell

Back 216

class cephalopoda

Front 217

members of this class have chromatophores

Back 217

class cephalopoda

Front 218

members of this class possess jaws or beaks, some have ink sacs

Back 218

class cephalopoda

Front 219

members of this class are distinct for their cephalization

Back 219

class cephalopoda

Front 220

how to octopi reproduce

Back 220

male has one tentacle that has sperm and places it into female

Front 221

archetudes is the largest living invertebrate. what class does it belong to?

Back 221

class cephalopoda

Front 222

the chitons make up this class

Back 222

class polyplacophora

Front 223

members of this class are primarily intertidal surface grazers

Back 223

class polyplacophora

Front 224

members of this class have a broad, large ventral foot

Back 224

class polyplacophora

Front 225

members of this class have a dorsal surface with articulating plates

Back 225

class polyplacophora

Front 226

members of this class have very strong rasping radula

Back 226

class polyplacophora

Front 227

snails, slugs, nudibranchs make up what class

Back 227

class gastropoda

Front 228

members of class gastropoda are found in what environments

Back 228

all of them

Front 229

what member of class gastropoda has torsion and what has detorsion

Back 229

snails, nudibranchs

Front 230

many species in this class carry a shell

Back 230

class gastropoda

Front 231

members of this class have a strong radula (snails)

Back 231

class gastropoda

Front 232

what organism can sting by proxy and how do they do it?

Back 232

nudibranchs, eat undeveloped nematocyst from anemones and they travel to the ends of the cirri and mature

Front 233

members of this class are single-shelled mollusks with a cap-like shell

Back 233

class monoplacophora

Front 234

members of this class are called living fossils and were discovered in deep water off the coast of chile

Back 234

class monoplacophora

Front 235

neopolina is the name of the last living genus of this class to be discovered

Back 235

class monoplacophora

Front 236

what is the major significance of the class monoplacophora

Back 236

the presence of internal segmentation, possible evolutionary relationship to the phylum annelida

Front 237

name three subphylums in the phylum chordata

Back 237

subphylum urochordata

subphylum cephalochordata

subphylum vertebrata

Front 238

members of this phylum have a notochord present at some point in their life

Back 238

phylum chordata

Front 239

members of this phylum have a dorsal nerve chord

Back 239

phylum chordata

Front 240

members of this phylum have pharyngeal gill slits present at some point in their life

Back 240

phylum chordata

Front 241

members of this phylum have a well-developed heart with a closed circulatory system, a complete digestive tract, and an endoskeleton of bone or cartilage

Back 241

phylum chordata

Front 242

what is the area where blood leaves the vessel to completely bath the organ in blood in an open circulatory system called

Back 242

sinuses

Front 243

marine chordates make up what subphylum?

Back 243

subphylum urochordata

Front 244

tunicates or sea squirts make up what subphylum

Back 244

subphylum urochordata

Front 245

members of this subphylum have tadpole larva and sessile adults

Back 245

subphylum urochordata

Front 246

members of this subphylum can reverse the beat of their heart

Back 246

subphylum urochordata

Front 247

this subphylum consists of marine chordates called lancelets

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subphylum cephalochordata

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there are only 25 known spp of this subphylum

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subphylum cephalochordata

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the notochord on this subphylum extends the length of the body throughout their lives. it allows them to wiggle back and forth to move and feed

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subphylum cephalochordata

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members of this subphylum have a vertebral column

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subphylum vertebrata

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name the 7 classes in subphylum vertebrata

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agnatha

chondricthyes

osteicthyes

amphibia

reptilia

mammalia

aves

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this is the most primitive vertebrate class

consists of lampreys and hagfish

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class agnatha

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this vertebrate class has a cartilaginous skeleton

consists of sharks and rays

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class chondrithyes

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members of this vertebrate class have a bony endoskeleton and are made of bony fish

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class ostiechyes

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the class name of this vertebrate class means dual life

have neoteny (retention of juvenile characteristics)

consists of salamanders, toads, frogs, newts etc

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class amphibia

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members of this vertebrate class have a cleidoic egg

consists of snakes and lizards

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class reptilia

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members of this vertebrate class all have hair

dogs, cats, etc

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class mammalia

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members of this vertebrate class are birds

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class aves

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Phylum Annelida consists of what two classes?

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Class oligochaeta

class hirudinae