23

Question 1

what animals are in phylum anthropoda

Answer 1

jointed legged animals

Question 2

what is the largest phylum

Answer 2

anthropoda

Question 3

anthropoda habitat

Answer 3

marine freshwater and terrestrial

Question 4

what is the most economically important phylum

Answer 4

anthropoda

Question 5

anthropoda diet

Answer 5

herbivores, predators, detrivores, parasites

Question 6

subphyla of anthropoda

Answer 6

pancrustacea
myriapoda
chelicerata
trilobita

Question 7

are crustaceans hexapods and myriapods all seperate phylum

Answer 7

-hexapo0ds and myriapods were previously sister phylums
-molecular data suggests crustacea and hexapods part of pancrustacea
-myriapoda sister to pancrustacea

Question 8

myriapoda and pancrustacea part of what clade

Answer 8

mandibulata

Question 9

what is sister clade of mandibulata

Answer 9

chelicerata

Question 10

what do all mandibulata have

Answer 10

mandibles

Question 11

anthropoda body and limbs

Answer 11

jointed limbs and jointed exoskeleton
-lack of motile body cilia

Question 12

what are exoskeleton functions

Answer 12

-protection and structural support
-muscle attachment points

Question 13

why are anthropoda so diverse

Answer 13

tagmatization

Question 14

how many antenae do arthropods genereally have

Answer 14

1

Question 15

what tagmata do all anthropoda have

Answer 15

head 2-5 segments

Question 16

myriapoda tagmata

Answer 16

a head and a homonomous trunk

Question 17

pancrustacean tagmata

Answer 17

head thorax and abdomen

Question 18

what are head and thorax combined as

Answer 18

cephalothorax

Question 19

most chelicerates tagmata

Answer 19

cephalothorax and abdomen

Question 20

what is the exoskeleton composed of

Answer 20

dorsal tergite, ventral sternite, and lateral pleurites

Question 21

what must happen for the animal to grow

Answer 21

exoskeleton must be moulted

Question 22

3 layers of cuticle

Answer 22

epicuticle
exoculticle
endoculticle

Question 23

epicuticle

Answer 23

protine only and thin, moulted

Question 24

exocuticle

Answer 24

chitin and protein and minerals, moulted and schlerilized

Question 25

endocuticle

Answer 25

chitin, proteins and minerals, resorbed before moulting

Question 26

what hormone controls moulting

Answer 26

ecdysone

Question 27

what parts of anthropoda are shed

Answer 27

gills, lining of foregut, hindgut and tracheae

Question 28

stages between moults called

Answer 28

instars

Question 29

steps of moulting

Answer 29

-apolysis -inactice moulting fluid -protective layer -endocuticle digested -new undifferentiated layer of cuticle with greater surfface area, starts out wrinkled ... -ecdysis, and animal swallows shit to help -new cuticle expands -new cuticle sclerotized

Question 30

apolysis

Answer 30

epidermis separates from endocuticle

Question 31

ecdysis

Answer 31

old exocuticle and epicuticle moulted

Question 32

what are the segments of arthropod limbs called

Answer 32

articles

Question 33

whjat is the most basal (closest to body) article called

Answer 33

coxa

Question 34

what arises from basal articles

Answer 34

side branches

Question 35

what are side branches that project medially called

Answer 35

endites

Question 36

medially

Answer 36

tawards body

Question 37

what are side branches that project laterally called

Answer 37

exites

Question 38

biramous vs uniramous

Answer 38

biramous: two terminal branches uniramous: one terminal branch

Question 39

what controls limb movement in anthropoda

Answer 39

muscles

Question 40

where do muscles attach

Answer 40

apodemes

Question 41

what are two type4s of limbs

Answer 41

phyllopodous stenopodous

Question 42

phyllopodous limb

Answer 42

flattened

Question 43

stenopodous

Answer 43

tubular

Question 44

what limb joints do stenopodous limbs have

Answer 44

ball and socket hinges

Question 45

intrinsic vs extrinsic articles

Answer 45

intrinsic: articles moved by muscles attached in previous article extrinsic: articles moved by muscles attached in body

Question 46

stops

Answer 46

overhangs that prevent overflexion or overextention

Question 47

what cleavage do many anthropoda have

Answer 47

intralecithal cleavage

Question 48

what is cleavage similar to anthropoda

Answer 48

velvet worms

Question 49

coelom of anthropoda and how does it arise

Answer 49

reduced, haemocoel arises via schizocoely

Question 50

how do juveniles grow

Answer 50

addition of segments jsut anterior to terminal segment

Question 51

is gas exchange a problem in anthropoda

Answer 51

yes becayse of thick exoskeleton gas exchange needs thin cuticle

Question 52

aquatic anthropoda respiration

Answer 52

limb branch gills or book gills

Question 53

terrestrial anthropoda respiration

Answer 53

-spiracles/ tracheae/ tracheoles -book lungs

Question 54

spiracles

Answer 54

openings to outside

Question 55

tracheae

Answer 55

largetubes

Question 56

tracheoiles

Answer 56

smaller tubes deliver oxygen to cells

Question 57

anthropoda nervouse syst

Answer 57

ventral nerve cord dorsal brain and circumesophageal connectives

Question 59

brain of anthropoda

Answer 59

2-3 lobes segmentally arranged ganglion

Question 60

what are anthropoda eyes called

Answer 60

compound eyes

Question 61

what are compound eyes composed of

Answer 61

ommatidia

Question 62

ommatidia what is it composed of

Answer 62

cuticulular lens, light sensitive cells, and nerve

Question 63

what is the image made of

Answer 63

many seperate spots of light

Question 64

compound eyes and light. what can they be

Answer 64

apposition superposition

Question 65

superposition eyes

Answer 65

are dark adapted have pigments concentrated in upper part of ommatidium allowing leakage of light to lower parts

Question 66

where do superposition eyes work best

Answer 66

-low light -low-resolution images produced

Question 67

apposition

Answer 67

light-adapted pigment that screens most of ommatidium, so light doesnt leak into others

Question 68

apposition eyes work best in

Answer 68

bright light high-resolution images

Question 69

what eyes do chelicerates and myriapods have

Answer 69

ocelli

Question 70

ocelli

Answer 70

simple eyes w single lens

Question 71

jumping spiders eyes

Answer 71

ocelli produce very sharp images