Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ZOOL 250 > PHYLUM ARTHROPODA > Flashcards

PHYLUM ARTHROPODA Flashcards

1
Q

Which characteristics of the arthropods support the clade as monophyletic?

A

Lack of motile body cilia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which body parts of the arthropoda are said to be homologies to the prostomium and the pygidium of annelids?

A

Acron and telson (bears the anus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the main function of the exoskeleton of the arthropods?

A

Protection and structural support

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The 2-4 semi-rigid plates that support each body segments of the arthropods are called..?

A

Sclerites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Dorsal semi-rigid plates

A

Tergite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ventral semi-rigid plates

A

Sternite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Two lateral semi rigid plates

A

Pleurites (found in Crustaceans and Uniramia)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The three main layer of the cuticles are…?

A

Epicuticle
Exocuticle
Exocuticle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Differentiate the three main layer of the cuticle?

A

Epi: protein only, may be waxy in insects (molted)
Exo: chitin + proteins and minerals(molted)
Endo: chitin, proteins and minerals (resorbed before molting)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Molting controlled by the ecdysone

A

Ecdysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What happens after molting and before the cuticle hardens?

A

Water or air inflates the body to its new size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the three main elements of the jointed limbs of the crustaceans?

A

Protopods
Exites
Endites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Terminal exite

A

Exopods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Terminal endites

A

Endopods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Nonterminal branches

A

Epipods
Gnathobases
Oostegites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does uniramous and biramous mean?

A 
Uniramous = 1 terminal branch (endopod)
Biramous = 2 terminal branch (exopod and endopods)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Flattened limbs which produce only flap-like movements

A

Phyllopodous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Tubular limbs, and produce a wide variety of motions

A

Stenopodous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Infoldings of the cuticle

A

Apodemes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Alternating ball and socket hinges

A

Di-condylic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Most spectacular image-forming eyes in animals (the compound eyes) is composed of..?

A

Ommatidia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How does aquatic arthropods respire?

A 
Book gills (primitive aquatic chelicerates)
Limb-branch gills (crustaceans and trilobites)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

How do terrestrial arthropods breathe?

A 
Book lungs (arachnids)
Spiracle/trichea system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Describe the arthropod coelom.

A

Greatly reduced
Arise embryonically via schizocoely
Most of the primary coelom fuses with the epineural sinus yielding extensive hemocoel

25
Q

The crustacean larval stage is called..?

A

Nauplius

26
Q

Segments of the head of the crustaceans

A

2 antennae, 1 mandible, 2 maxillae

27
Q

Shield that covers the head of the crustaceans forming the cephalothorax

A

Carapace

28
Q

Modified limbs for feeding of the crustaceans

A

Periopods

29
Q

Limbs found in the abdominal segments of thecrustaceans

A

Pleopods

30
Q

Subclass of the phylum Crustacea which are entirely sessile as adults

A

Cirripidea

31
Q

Crustacean classes which are found in marine both exhibit primitive traits

A

Remipedia and Cephalocarida

32
Q

Mainly freshwater particle feeder crustaceans

A

Branchiopoda

33
Q

Heterogenous crustaceans, mainly marine group that includes the barnacles and copepods

A

Class Maxillopoda

34
Q

Most diverse class of the crustaceans

A

Malacostraca

35
Q

Three characteristics shared by the class Malacostraca

A
  1. 21 somites
  2. Stalked eyes in adults
  3. Limbs on abdominal segments
36
Q

Three general body forms of the class malacostraca

A

Shrimp-like
Lobster-like
Crab-like

37
Q

Active predators. Highly specialized limbs for spearing or hammering

A

Haplocarida

38
Q

The group where misids, isopods, amphipods belong

A

Peracarida

39
Q

The group of the shrimps, crayfish, lobsters, crabs

A

Decapoda

40
Q

Distinctive larval stage of the decapoda

A

Zoea

41
Q

Phylum which the first lim pair are called chelicerae (mouthparts)

A

Chelicerata

42
Q

Typical small bodies chelicerates

A

Class Pycnogonida

43
Q

The class Pycnogonida has two tagmata namely..

A

Trunk

Very reduced abdomen

44
Q

The class that the horseshoe crabs belong to..?

A

Class Merostomata

45
Q

The two tagmata of the horseshoe crabs are..?

A

Cephalothorax

Abdomen

46
Q

Not considered a true telson because it does not bear the anus

A

Tail spine

47
Q

Hugely successful terrestrial group. Some marine and freshwater. Body has three tagmata.

A

Class Arachnida

48
Q

Has two tagamata in class Arachnida

A

Araneae (spiders)

49
Q

Tagmatization is weak in class Arachnida

A

Acari (ticks and mites)

50
Q

Body has three tagmata in the class Arachnida

A

Scorpiones

51
Q

Once the most numerous arthropods on earth

A

SubPh. Trilobitomorpha

52
Q

Class of the centipede

A

Chilopoda

53
Q

Class of the millipedes

A

Diplopoda

54
Q

Extremely successful group but curiously never invaded the sea, abdomen lacks limbs and has three pair of walking legs.

A

Superclass Hexapoda

55
Q

Larva differ from adult (holometabolous)

A

Endopterygota

56
Q

Nymphs resemble adults but lack wings (hemitabolous)

A

Exopterygota

57
Q

Wing insects

A

Pterygota

58
Q

External mouth part of the Pterygota

A

Ectognathus

59
Q

Internalized mouthparts of the Apterygota

A

Ectognathus

ZOOL 250 (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions