The Arthropods

Front 1

Copepods

Back 1

Most abundant animal on earth; type of marine arthropod

Front 2

Plankton

Back 2

One of the smallest creature; food to blue whales

Front 3

Phylum Arthropods/Arthropoda

Back 3

Joint foot; most successful phylum in the animal kingdom

Front 4

Metamerism

Back 4

Segmented body with tagmatization

Front 5

Ecdysis/molting

Back 5

The shredding of exoskeleton

Front 6

Tagmatization

Back 6

Specialization of body regions for specific function

Front 7

Tagmata

Back 7

Body regions

Front 8

Exoskeleton or cuticle

Back 8

External jointed skeleton

Front 9

Chitin

Back 9

A tough polysaccharide

Front 10

Epidermis/hypodermis

Back 10

Deep layer of tissue

Front 11

Epicuticle

Back 11

Waxy, outermost layer of exoskeleton

Front 12

Procuticle

Back 12

Deeper, thicker layer of chitin and protein

Front 13

Ecdyson

Back 13

Causes the old procuticle to breakdown and separate from epidermis

Front 14

hemocoel

Back 14

An internal cavity for the open circulatory system

Front 15

Hemolymph

Back 15

Body fluid

Front 16

Metamorphosis

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Eggs→larva→pupa→adult

Front 17

Subphylum Trilobites

Back 17

Dominant life forms that went extinct

Front 18

Appendages

Back 18

Two lobes or branches (biramous)

Front 19

Subphylum Chelicerata

Back 19

Spiders, mites, horseshoe crabs

Front 20

Chele

Back 20

Claw

Front 21

Prosoma (cephalothorax)

Back 21

Head; for sensory, feeding, locomotion

Front 22

Opisthosoma

Back 22

Abdomen; digestion, reproduction, excretion

Front 23

Chelicerae

Back 23

First pair of appendages (pincerlike)

Front 24

Pedipalps

Back 24

Second pair of appendages (sensory)

Front 25

Subphylum Chelicerata → Class Merostomata

Back 25

Horsehoe crabs, giant water scorpions

Front 26

Carapace

Back 26

Hard, horseshaped; covers the prosoma

Front 27

Subphylum Chelicerata → Class Arachnida

Back 27

Mites, ticks, scorpions

Front 28

Arachne

Back 28

Means "spider"

Front 29

Foregut, midgut, hindgut

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3 parts of gut tract

Front 30

Book lungs

Back 30

Arachnids use to reduce water loss; paired, leaf-like

Front 31

Tracheal system

Back 31

Gas exchange

Front 32

Spiracles

Back 32

Tiny branching tubes that penetrate the body

Front 33

Sensilla

Back 33

Modified extensions of the exoskeleton-acts as receptors

Front 34

Photoreceptors

Back 34

Detect movement; light intensity or images

Front 35

Simple or pigment (cup Ocelli)

Back 35

Median eyes

Front 36

Compound eyes

Back 36

Lateral eyes

Front 37

Cup ocelli

Back 37

Pigment

Front 38

Ommatidia

Back 38

Thousands of light receiving units in compound eyes

Front 39

Subphylum Chelicerata → Class Merostomata → Order Scorpionida

Back 39

Scorpions, tropical climates

Front 40

Oviparous

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Females lay eggs and develop outside of body

Front 41

Ovoviviparous

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Young develop in large yolky eggs held internally in the body

Front 42

Viviparous

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Mother provides nutrients to embryos

Front 43

Subphylum Chelicerata → Class Merostomata → Order Aranae

Back 43

Spiders

Front 44

Spiders

Back 44

Largest group of arachnids

Front 45

Spinnerettes

Back 45

Posterior end that makes silk using silk glands

Front 46

Necrotoxin

Back 46

Causes tissue death

Front 47

Subphylum Chelicerata → Class Merostomata → Order Acarina

Back 47

Mites and ticks; prosoma and opisthosoma are fused and covered by single carapace

Front 48

Subphylum Chelicerata → Class Pycnogonida

Back 48

Sea spider; moves by diffusion

Front 49

Subphylum Crustacea

Back 49

Lobsters, shrimp, crayfish, copepods, barnacles

Biramous appendages

Front 50

Endopodite

Back 50

Medial ramus

Front 51

Exopodite

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Lateral ramus

Front 52

Subphylum Crustacea → Class Malacostraca

Back 52

Crabs, lobsters, shrimp; possess mandibles and maxillae

Front 53

Subphylum Crustacea → Class Malacostraca → Order isopoda

Back 53

Pillbugs-terrestrial crustacean; parasite

Front 54

Subphylum Crustacea → Class Branchiopoda

Back 54

Gill footed, fairy and brine shrimp; females may reproduce pathogenetically

Front 55

Subphylum Crustacea → Class Maxillopoda

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Subclass Copepoda - most abundant crustacean

Subclass Thecostraca - barnacles, attach to rocks, ships, whales