arthropods

Question 1

phylum tardigrada

Answer 1

terrestrial, live in water film around mosses and lichens, unsegmented oval body, trunk has pairs of legs with 4-8 pairs of claws

Question 2

superphylum ecdysozoa

Answer 2

grow by molting, locomotion not by cilia, common set of homeobox genes

Question 3

phylum priapulida

Answer 3

body has introvert trunk, one or 2 caudal appendages, eat worms, sexes separate but no male found

Question 4

phylum kinorhyncha

Answer 4

small, 11 segments, retractile head, flat body ventrally, dorsally arched, cant swim but live in marine mud

Question 5

phylum onychophora

Answer 5

velvet worms, 70 species, fossils from mid-cambrian

Question 6

phylum chaetognatha

Answer 6

marine and planktonic, unsegmented body with head trunk and postanal tail, feed on copopods

Question 7

phylum arthropod characters

Answer 7

show metamerism with tagmatization, jointed exoskeleton, and ventral nervous system

Question 8

metamerism

Answer 8

specialized segments with appendages

Question 9

tagmatization

Answer 9

allows specialization of regions of body for special functions

Question 10

subphylum trilobitomorpha

Answer 10

marine, lived from cambrian to permian, body divided into 3 lobes caused by grooves, have antennas

Question 11

biramous appendages

Answer 11

consists of 2 lobes and serve as either walking, swimming, digging legs or gills

Question 12

class dinocaridida

Answer 12

shrimplike superpredator with enhanced vision

Question 13

subphylum chelicerata

Answer 13

body divided into a prosoma and opisthosoma, first pair of appendages pincerlike and used for feeding

Question 14

subclass xiphosurida

Answer 14

unsegmented horseshoe shaped carapace with abdomen and telson, book gills

Question 15

class meristomata

Answer 15

giant sea scorpion, early devonian, 2 meters long

Question 16

class arachnida

Answer 16

2 tagmata, cephalothorax has chelicerae, pedipalps, 4 pairs of walking legs, predaceous, has venom glands, sucking pharynx

Question 17

class pycnogonida

Answer 17

benthic, marine, carnivores, muscular pharynx, mouth at end of proboscis, digestion is intracellular, no excretory or respiratory organs, or coelom

Question 18

subphylum myriapoda

Answer 18

class chilopoda, one pair of walking legs per body segment

Question 19

class diplopoda

Answer 19

2 pairs of legs per body segment

Question 20

subphylum crustacea

Answer 20

most aquatic, head with 2 pairs of antennae, one pair of mandibles and 2 pair of maxillae, biramous appendages

Question 21

class ramipedia

Answer 21

12 species of underwater cave dwelling, 30 segments with biramous appendages, kills prey with venomous fangs

Question 22

class cephalocarida

Answer 22

small leaflike appendages, hermaphrodites

Question 23

class branchiopoda

Answer 23

flattened leaf like appendages that are used in respiration, filterfeeding, and locomotion. freshwater

Question 24

class ostracoda

Answer 24

enclosed in bivalve carapace, fusion of trunk segments, found in plankton

Question 25

class maxillopoda

Answer 25

5 cephalic segments, 6 thoracic segments, 4 abdominal segments

Question 26

subclass copepoda

Answer 26

maxillipeds for feeding, habitat ranges from freshwater to hypersaline solutions, many parasitic

Question 27

subclass cirripedia

Answer 27

sessile adults, marine, enclosed in calcium carbonate valves, barnacles

Question 28

class malacostroca

Answer 28

appendages modified for crawling, swimming, or feeding

Question 29

subphylum hexapoda

Answer 29

class egtonatha-base of mouthparts in head capsule and mandibles have articulation
class insecta- mouthparts exit head capsule and mandibles have 2 regions of articulation

Question 30

malphigian tubules

Answer 30

solutes actively secreted into tubules, water and KHOr follow

Question 31

holometabolous metamorphosis

Answer 31

larva look nothing like adults

Question 32

hemimetabolous metamorphosis

Answer 32

larva look similar to adults

Question 33

order ephemeroptera

Answer 33

mayfly

Question 34

order zygentoma

Answer 34

silverfish

Question 35

order neuroptera

Answer 35

dobsonfly

Question 36

order coleoptera

Answer 36

tiger beetle

Question 37

order hymenoptera

Answer 37

ants

Question 38

order trichoptera

Answer 38

caddlisflies

Question 39

order lepidoptera

Answer 39

butterfly

Question 40

order diptera

Answer 40

flies

Question 41

order siphonaptera

Answer 41

fleas

Question 42

order hemiptera

Answer 42

cicada

Question 43

order psocodea

Answer 43

parasitic lice

Question 44

old order isoptera

Answer 44

termites

Question 45

order blattodea

Answer 45

termites

Question 46

order mantodea

Answer 46

praying mantis

Question 47

order dermaptera

Answer 47

earwigs

Question 48

order orthoptera

Answer 48

grasshoppers

Question 49

order phasmida

Answer 49

walking sticks

Question 50

order odenata

Answer 50

dragonflies