Arthropods

Question 1

Characteristics of phylum arthropoda

Answer 1

Chitin exoskeleton, segmented body, jointed appendages, ecdysis (shedding), some with wings, most successful organism

Question 2

Arthropod subphylums

Answer 2

Trilobita, Chelicerata, Crustacea, Uniramia/Labiata

Question 3

Subphylum Trilobita (characteristics)

Answer 3

Extinct, marine scavengers, abundant in fossil record, tri-lobed

Question 4

Subphylum Chelicerata (characteristics)

Answer 4

Ancient/some extinct, six pairs of appendages (chelicerae anterior mouthparts, pedipalps leg like mouthparts, walking legs four pairs), no mandible or antennae

Question 5

Classes in subphylum celicerata

Answer 5

Merostomata (horseshoe crabs), arachnida (spiders, scorpions, harvestmen, ticks and mites)

Question 6

Orders in class arachnida

Answer 6

Aranae, scorpionida, opiliones, acari

Question 7

Order aranae

Answer 7

Spiders; book lungs, simple eyes, sensory setae, silk glands, chelicerae with venom

Question 8

Order scorpionida

Answer 8

Scorpions; jaw-like chelicerae and claw-like pedipalps, bear living young, have a stinging apparatus

Question 9

Order opiliones

Answer 9

Harvestmen; long spindly legs, no pedicel, no venom/silk

Question 10

Order acari

Answer 10

Ticks and mites; fully fused cephalothorax and abdomen, some parasitic

Question 11

Subphylum crustacea (characteristics)

Answer 11

Mostly aquatic, free-living, two pairs of antennae, mandibles, five pairs of walking legs and first pair may be enlarged claws

Question 12

Classes in subphylum crustacea

Answer 12

Branchopoda, maxillopoda, malacostraca

Question 13

Class branchopoda

Answer 13

Brine shrimp and water fleas

Question 14

Class maxillopoda

Answer 14

Copepods and barnacles

Question 15

Class malacostraca

Answer 15

Order isopoda (pill bags, sow bugs), order decapoda (lobsters, crayfish, shrimp, crabs)

Question 16

Subphylum uniramia (characteristics)

Answer 16

Unbranched appendages, one pair of antennae, mandibles, two pairs of maxillae

Question 17

Classes in subphylum uniramia

Answer 17

Chilopoda (centipedes), diplopoda (millipedes), insecta (insects)

Question 18

Class chilopeda

Answer 18

Centipedes; I pair of legs per segment, flattened, poison bearing mouthparts, predators, serpentine movement

Question 19

Class diplopeda

Answer 19

Millipedes: 2 pairs of legs per segment, rounded, herbivores, rectilinear movement

Question 20

Class insecta

Answer 20

3 pairs of legs, many have 2 wings on thorax, orders: orthoptera, isoptera, hemiptera, homoptera, coleoptera, lepidoptera, diptera, hymeoptera, ephemeroptera, plectoptera, trichoptera

Question 21

Order orthoptera

Answer 21

Grasshoppers

Question 22

Order isoptera

Answer 22

Termites

Question 23

Order hemiptera

Answer 23

Stink bugs, water striders

Question 24

Order homoptera

Answer 24

Cicadas, aphids

Question 25

Order coleoptera

Answer 25

Beetles

Question 26

Order lepidoptera

Answer 26

Butterflies, moths

Question 27

Order diptera

Answer 27

Flies, gnats, mosquitos

Question 28

Order hymenoptera

Answer 28

Ants, bees, wasps

Question 29

Order ephemeroptera

Answer 29

Mayflies

Question 30

Order plecoptera

Answer 30

Stoneflies

Question 31

Order tricoptera

Answer 31

Caddisflies