Mollusk, Arthopod, And Echinoderm Review

Front 1

Adductor Muscles

Back 1

Used by pelecypods to close their shells

Front 2

Gastropoda

Back 2

Largest class of mollusks

Front 3

Foot

Back 3

Muscular structure in mollusks used for movement

Front 4

Viscoral Mass

Back 4

Excretory digestive and circulatory structures

Front 5

Chromatophores

Back 5

Cells which enable cephalopods to change color

Front 6

Cephalopoda

Back 6

Class name means "head-foot"

Front 7

Pelecypoda

Back 7

Class of mollusks that contains bivalves ex:oysters, scallops, and clams

Front 8

Scaphopoda

Back 8

Class of mollusks that have cylindrical shell open at both ends and resembling a tooth

Front 9

Radula

Back 9

Scraping tool for feeding

Front 10

Mantle

Back 10

Structure which secretes the mollusk shell

Front 11

Periostracum

Back 11

Thin organic coating, or "skin", which is the outer layer of the shell

Front 12

Pearly (nacreous)

Back 12

appearance of a valuable pearl

Front 13

Prismatic

Back 13

The ostracum layer of the shell is described as

Front 14

Byssal Threads

Back 14

Sticky threads for stabilization

Front 15

Poly Placophora

Back 15

Class whose specimans have 8 plates therefore polyplacophora means "many plates"

Front 16

Excretory Gland

Back 16

known as "green gland"

Front 17

Telson

Back 17

The last abdominal segment of an aquatic arthopod

Front 18

What type of circulatory system do arthopods have?

Back 18

Open

Front 19

Horseshoe Crabs

Back 19

Use blue gills to respire

Front 20

Cephalothorax

Back 20

Fused head and thorax of crustaceans

Front 21

Molting

Back 21

periodic shedding of the exosceleton in Arthopods

Front 22

Antenna

Back 22

sensory structure used in crustaceans used for taste, touch, and equilibrium

Front 23

Rostrum

Back 23

sharp anterior projection of the carpace un crayfish, lobsters, and shrimp

Front 24

What does arthopoda mean

Back 24

"joined foot"

Front 25

Statocyst

Back 25

used for equilibrium in some atrthopods

Front 26

Radial

Back 26

type of symmetry that adult echinoderms have

Front 27

Bilateral

Back 27

type of symmetry that larval echinoderms have

Front 28

Ossicles

Back 28

Skeleton of most echinoderms, made up of calcareous plates

Front 29

Aboral

Back 29

surface of most echinoderms where madreporite is located

Front 30

Tiedemann Body

Back 30

on inner surface of ring canal and produce amebocyts in echinoderms

Front 31

Endoskeleton

Back 31

Skeleton on inside of body

Front 32

Oral

Back 32

Surface of echinoderms where the mouth is located

Front 33

Pylonic

Back 33

upper stomach chamber, smaller

Front 34

Ophiuroidea

Back 34

class that includes brittle starts and basket stars

Front 35

Madreponte

Back 35

also referred to as sieve plate

Front 36

Mandibles

Back 36

Jaws of crustacians

Front 37

Ommatidum

Back 37

The basic unit of the compound eye of a crustacean

Front 38

Swimmerets

Back 38

used by crustations to hold eggs by females

Front 39

Number of species in subphylum crustacea

Back 39

40,000

Front 40

Arthropod's body is made up of...

Back 40

head and thorax

Front 41

Chitin and proteins

Back 41

Make up exoskeleton of an arthropod

Front 42

Carapace

Back 42

the heavy shield covering the cephalothorax

Front 43

Maxillipoda

Back 43

contains copepods, branchiurans, barnicles, and ostracods

Front 44

Sea Spiders

Back 44

Class pycnogonida

Front 45

Horseshoe Crabs

Back 45

Class Merostomata