lab 8 ADL Flashcards
1
Q
phylum
A
anthropoda
2
Q
organization
A
organ level
3
Q
embryonic development
A
. triploblast
. protostome
. eucoelmate
4
Q
symmetry
A
bilateral
5
Q
support system
A
exoskeleton
6
Q
movement
A
. pleopods
. longitudinal muscles
. striated muscles
7
Q
nervous system
A
. cerebral ganglion
. ventral nerve cord
. cephalization
. dorsal brain
8
Q
circulation
A
open circulatory system
9
Q
digestion/feeding
A
. complete digestive system . filter feeders . predators . extra/intracellular predigestion . gut divided in 3 areas
10
Q
3 divisions of gut
A
. foregut
. midgut
. hindgut
11
Q
excretory system
A
. nephridia
. malpighian tubules
. green gland
12
Q
reproduction
A
. sexual . mono/dioecious . partenogeneses . external fertilization . internal fertilization . free living nauplius larvae
13
Q
respiratory system
A
. book lungs
. book gills
14
Q
all anthropods have
A
segmented bodies and jointed appendages
15
Q
segmented bodies
A
. only last during embryonic development
. tagmata
16
Q
exoskeleton made of
A
. chitin and proteins
. overlapping folds
17
Q
purpose of exoskeleton
A
. support . muscle attachment . protection . prevents water loss . protects against salinity changes in marine species
18
Q
ecdysis
A
molting of exoskeleton to make room for larger internal body
19
Q
exoskeleton limits
A
body size
20
Q
reduced coelom means
A
main body cavity is hemocoel
21
Q
hemocoel
A
blood filled sinuses in tissues, makes up part of open circulatory system
22
Q
anthropods have a true coelum
A
true
23
Q
tagmatization (tagmata)
A
. head, thorax, abdomen
. type of metamerism
. unique to anthropods
24
Q
Subphylum trilobiomorpha, class trilobita features
A
. jointed appendages . chitinous exoskeletons . complex nervous system . segmented bodies . complete digestive system . specialized internal organs . compound eyes . single pair of antennae . sexual reproduction . lived on sea floor . preyed on smaller invertebrates or ate organic debris . dug for food and to protect from predators . marine
25
subphylum chelicerata, class merostomata features
```
. chelicerae
. nocturnal
. swim on backs
. eat mulluscs and worms
. 2 compound eyes
. book gills (breathing and swimming)
. gnathobase
. 1 eyespot (ocelli)
. blue blood
. boxing glove pedipalp (male)
```
26
chelicerae
pair of mouthparts in chelicerates that contain fangs and are used to stab and paralyze prey
27
gnathobase
toothed food-grinding surface surrounded by 4 pairs of walking legs
28
all animals in subphylum Chelicerata have
```
. 2 tagmata (cephlothorax and abdomen)
. chelicerae
. no antennae
. pedipalps
. 8 walking legs
. chitinous exoskeleton
```
29
Class Merostomata species
horseshoe craps
30
class arachnida species
scorpions, spiders, ticks, mites, daddy long legs
31
trilobite structures to identify (dorsal)
```
. simple eye
. compound eye
. telson
. abdomen
. cephalothorax
```
32
trilobite structures to identify (ventral)
```
. chelicerae
. pedipalp
. mouth (gnathobase)
. walking legs
. carapace
. anus
. genital and gill operculum
. book gills
```
33
how many compound eyes do horseshoe crabs have?
2
34
how many simple eyes do horseshoe crabs have
1
35
malpighian tubules
excretory system works with rectal gland
36
subphylum chelicerata, class arachnida features
```
. 1 pair of chelicerae
. 1 pair of pedipalps
. 4 pairs of walking legs
. carnivorous (except mites)
. feed on liquified food
. digest externally using venom
. book lungs or trachea
. malpighian tubules
. covered in specialized sensory hairs
. some scorpions and spiders "sexual sting"
```
37
all species in subphylum crustacea have
. 2 tagmata
. biramous appendages
. calcified skeleton
. gills
38
biramous appendages
one for gills, one for attachment
39
2 tagmata in crustacea
cephalothorax and abdomen
40
Subphylum Crustacea classes
. branchiopoda
. copepoda
. cirripedia
. malacostraca
41
class branchiopoda
. fairy/brine shrimp
. gills on legs
. use antennae for swimming
42
class copepoda
```
. teardrop shaped
. all aquatic environments
. long antennae
. thin carapace
. parasitic
. one eye
```
43
class cirripedia
```
. barnacles
. free swimming larvae
. sessile adults
. monoecious
. filter feeder
. live in shell w open top
```
44
class Malacostraca
. shrimp, crabs, lobsters, crayfish, terrestrial pill bugs
| . mantis shrimp w most complex eye
45
cuticle
forms well developed jointed exoskeleton
46
apodemes
internal surfaces for muscle attachment
47
homology
. same origin
. same/different function
. different individual
. vertebrate arm bones
48
serial homology
. same ancestral structure, different segment
. same/different function
. same individual
. crayfish appendages
49
analogy
. different origin
. same function
. different individual
. wings
50
which characteristic is shared by nematoda and anthropoda but is not found in mullusca?
exoskeleton/cuticle
51
what is absent in chelicerata?
antennae
52
how many pairs of chelicerae do horseshoe crabs have?
1
53
how many pairs of pedipalps do horseshoe crabs have?
1
54
how many pairs of walking legs do horseshoe crabs have?
4
55
function of telson in horseshoe crabs
burrowing in sand
56
function of telson in arachnida
defense
57
chelicerae are derived from a different body segment than mandibles proves
mouthparts originate independently in chelicerata and crustacea
58
chelicerata are the sister taxon to all anthropods
true
59
class that is mostly parasitic
copepoda
60
mouthparts of various shapes is advantageous for crayfish because
they provide different functions during feeding
61
cephalothorax
head and thorax
62
what organ secretes enzymes into stomach to digest food?
digestive gland
63
what structure proves crayfish have an open circulatory system?
ostia in heart
64
where are green glands located on crayfish?
ventral surface of head near mouth
65
which pair of walking legs in blue crabs has been modified for swimming?
fifth
66
purpose of cirri in cirripoda
filter feeding
