Invert Exam 3

Front 1

3 major layers of mollusk shells

Back 1

–Periostracum

–Prismaticlayer

–Nacreouslayer

Front 2

mollusks have

Back 2

open circulatory system

blood pumped from a heart

gas exchange by gills or other tissues

nervous system

one way digestive system

Front 3

mollusk reproduction

Back 3

internal or external fertalization

trochophore stage

veligar larva

Front 4

class polyplacophora

Back 4

chitons

plated shell

Front 5

class aplacophora

Back 5

no shells but have calcareous spines

unsegmented body

Front 6

class monoplacophora

Back 6

1 shell flattened unhinged

multiple copies of internal organs

Front 7

class gastropoda

Back 7

largest mollusk class

larval torsion

motion: cilia or pedal waves

snails and slugs

Front 8

three groups of gastropods

Back 8

Prosobranchia

Opisthobranchia

Pulmonata

Front 9

prosobranchia

Back 9

snails and sea elephants

Front 10

opisthobranchia

Back 10

sea hares, sea slugs and bubble shells

hermaphrodites

Front 11

rhinopores

Back 11

chemosensory, analogous to osphroidium

Front 12

parapodia

Back 12

may be used to swim

Front 13

keptoplasty

Back 13

stealing plastids, where algal genes are incorporated into sea slug dna .

Front 14

pulmonata

Back 14

snails and slugs

coiled shell

simultaneous hermaphrodites

love darts

Front 15

class Cephalopoda

Back 15

nautilus, squid, octopus, cuttlefish

closed circulatory system with 3 hearts

Front 16

hectocotlyus

Back 16

modified in octopus for spermatophore transfer to female

Front 17

chromatophores

Back 17

changing of the color of skin cells

Front 18

subclass Nautiloidea

Back 18

shell divided by septa

–Siphuncletransportsliquid/gases through chambers

Front 19

cepahlopod defenses

Back 19

camouflage, mimicry, bright patterns, bioluminescence, ink, autotomy,

Front 20

autotomy

Back 20

dropping an arm or leg to escape a predator

Front 21

subclass Coleoidea

Back 21

squid, octopus, cuttlefish

Front 22

order Sepioidea

Back 22

cuttlefish, rams horn, bobtail squid

W shaped pupils

cuttlebone

brown ink

Front 23

Order teuthoidea

Back 23

squid

eight arms 2 tentacles

pen

radula inside beak

Front 24

order octopoda

Back 24

octopus

8 arms no tentacles

beak

Front 25

class bivalvia

Back 25

clams, mussels, oysters,

hinged shell with adductor muscles

two siphons, one incurrent one excurrent

Front 26

class scaphopoda

Back 26

tusk or tooth shells

all benthic organisms

No ctenidia, osphradium,heart, eyes, or circulatory system

Front 27

Phylum Annelida

Back 27

flexible body wall

septa separate segments

closed circulatory system

linear unsegmented gut

Front 28

class polychaete

Back 28

largest class of annelids

proboscis

parapodia involved with gas exchange + locomotion

Front 29

polychaete reproduction

Back 29

external fertilization

trochophore larva

Epitoky

Front 30

Class citellata

Back 30

has clitellum

Front 31

subclass oligochaeta

Back 31

earthworms

no parapodia

have light receptors

move via peristaltic waves

Front 32

Oligochaeta reproduction

Back 32

simultaneous hermaphrodites

sperm stored in spermathecae

eggs and sperm release in cocoons

embryos emerge as tiny worms

Front 33

subclass Hirudinea

Back 33

Leeches

3 toothed jaws, salivary glands secrete hirudin

movement by suckers

Front 34

Hirudinea reproduction

Back 34

sperm stored in spermathecae

baby leeches hatch from cocoon

Front 35

Phylum Arthopoda

Back 35

85% of animal species

segmented bodies

Front 36

tagmatization

Back 36

segments in bodies are fused modified and specialized.

open circulatory system

Front 37

arthropod exoSkeleton layers

Back 37

–Epicuticle

Procuticle(chitin

Front 38

ecdysis

Back 38

molting of skin or exoskeleton

Front 39

subphylum Trilobitomorpha

Back 39

trilobites

•Flattenedbody, compound eyes, three tagmata: cephalon, thorax, andpygidium

Front 40

subphylum Chelicerata

Back 40

has chelicerae

prosomoa and opisthosoma

Front 41

class Merostomata

Back 41

horse shoe crabs / sea scorpions

compound eyes

legs modified into pedipalps

spiny gnathobase at base of legs

Front 42

`Chilaria

Back 42

hairy appendages on prosoma

Front 43

class Pycogonida

Back 43

sea spiders

Nospecialized respiratory or excretory systems; complete digestive system andgonads (both extend into legs)•

Pairof ovigers

Front 44

Class Arachnida

Back 44

prosoma and opisthosoma

–Chelicerae(fangs in spiders)

–Pedipalps

Fourpairs of walking leg

internal lungs

blood not used for gas exchanged

Front 45

order Arneae

Back 45

spiders

2 abdominal segments

1-4 spinnerets

venom glands in fangs

Front 46

Order Acari

Back 46

mites and ticks

Front 47

Order scorpiones

Back 47

scorpions

largest arachnids

•Prosoma,mesosoma,metasomatippedwith sting (aculeus)•

•Exaggeratedpedipalpalclaws

•Fluoresceunder UVlight

Front 48

Order opilliones

Back 48

harvestmen

Front 49

order Uropygi

Back 49

whip scorpions

Front 50

Order Amblypygy

Back 50

tailless whip scorpions

Front 51

schizomida

Back 51

split middle whip scorpions