Brainscape's Knowledge GenomeTM

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


See full index

Biology 2 > Chapter 33: Animal Groups Summary > Flashcards

Chapter 33: Animal Groups Summary Flashcards

1
Q

Lack tissues; have choanocytes

A

Porifera

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

Have collar cells

A

Porifera

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

Flagellated cells that ingest bacteria and tiny food particles

A

Collar cells

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

Sponges

A

Porifera

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

Hydras, jellies, sea anemones, corals

A

Cnidaria

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

Unique stinging structures (__________) housed in specialized cells (___________)

A

Cnidaria
Nematocysts
Cnidocytes

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

Diploblastic

A

Cnidaria

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

Radially symmetrical

A

Cnidaria

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

Digestive compartment with a single opening

A

Cnidaria
Gastrovascular cavity

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

Flatworms

A

Platyhelminthes

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

No body cavity

A

Platyhelminthes

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

Dorsoventrally flattened

A

Platyhelminthes

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

Gastrovascular cavity or no digestive tract

A

Platyhelminthes

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

What 2 Phylum ONLY have a Hemocoel?

A

Syndermata (Lophotrochozoa)
Nematoda (Ecdysozoa)

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

What 5 Phylum have Coelom?

A

Ectoprocta (Lophotrochozoa)
Brachiopoda (Lophotrochozoa)
Annelida (Lophotrochozoa)
Echinodermata (Deuterostomia)
Chordata (Deuterostomia)

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

What are the 6 Phylum of Lophotrochozoa?

A

Platyhelminthes
Syndermata
Ectoprocta
Brachiopoda
Mollusca
Annelida

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Rotifers and Acanthocephalans

A

Syndermata

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

Digestive tube with mouth and anus

A

Alimentary canal

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

Have an alimentary canal

A

Rotifers (Syndermata)

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

Have jaws (trophi)

A

Rotifers (Syndermata)

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

Are parasites of vertebrates

A

Acanthocephalans (Syndermata)

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

Feeding structures bearing ciliated tentacles

A

Lophophores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Have lophophores and coelom

A

Ectoprocta and Brachiopoda

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Clams, snails, and squid

A

Mollusca

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What 2 phylum have a Hemocoel and a reduced coelom

A

Mollusca (Lophotrochozoa)
Arthropoda (Ecdysozoa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What are the three main body parts of Mollusca?

A

Muscular foot
Visceral mass
Mantle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Most have a hard shell made of calcium carbonate

A

Mollusca

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Segmented worms

A

Annelida

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Coelom; body wall and internal organs are segmented

A

Annelida

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Unsegmented digestive tract

A

Annelida

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Roundworms

A

Nematoda

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Hemocoel; cylindrical body with tapered ends

A

Nematoda

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

No circulatory system

34
Q

Undergoes Ecdysis (molting it’s exoskeleton)

35
Q

Spiders, centipedes, crustaceans, and insects

A

Arthropoda

36
Q

Segmented body, jointed appendages, and exoskeleton made of protein and chitin

A

Arthropoda

37
Q

Sea stars and sea urchins

A

Echinodermata

38
Q

Bilaterally symmetrical larvae and 5 part body organization as adults

A

Echinodermata

39
Q

Unique water vascular system; endoskeleton

A

Echinodermata

40
Q

Lancelets, tunicates, vertebrates

41
Q

Have notochord

42
Q

Dorsal, hollow nerve cord; pharyngeal slits; post-anal tail

43
Q

Lophotrochozoa, Ecdysozoa, and Deuterostomia

44
Q

Captures particles suspended in the water the passes through its body

A

Filter feeder

45
Q

Central cavity of sponges

A

Spongocoel

46
Q

Water flows out of sponges central cavity through the

47
Q

Sponge cell types

A

Choanocytes
Amoebocytes

48
Q

Flagellated collar cells; engulf bacteria and food particles by phagocytosis

A

Choanocytes

49
Q

Gelatinous region in sponges that separates the two layers of cells in the body

50
Q

Totipotent cell within the mesohyl that digest food, transport nutrients, and make skeletal fibers

A

Amoebocytes

51
Q

Sac with a central digestive compartment

A

Gastrovascular cavity

52
Q

Two variations of the Cnidarian body plan

A

Polyp
Medusa

53
Q

Adhere to the substrate by the aboral end of the body (the opposite end of the mouth)

54
Q

Free-swimming form that has a bell shaped body with a mouth on the underside

55
Q

Tentacles are armed with ___________, unique cells used in defense to capture prey

A

Cnidocytes

56
Q

Are specialized organelles within cnidocytes that eject a stinging thread

A

Nematocysts

57
Q

Alternate between polyp and Medusa forms

A

Hydrozoans (Obelia)

58
Q

Exists only in polyp form

59
Q

In flatworms, a network of tubules with ciliated structures called flame bulbs

A

Protonephridia

60
Q

Used for movement

A

Muscular foot

61
Q

Containing most of the internal organs

A

Visceral mass

62
Q

A fold of tissue draping over the visceral mass that secretes the shell

63
Q

Houses the gills, anus and excretory pores

A

Mantle cavity

64
Q

Scrape up food

65
Q

Animals with a cuticle

A

Ecdysozoans

66
Q

Cuticle is shed during “molting”

A

Ecdysis (molting)

67
Q

2 largest of Ecdysozoans

A

Nematodes and arthropods

68
Q

Used for locomotion, and as gills in Errantians

69
Q

Chelicerates are named or clawlike feeding appendages called

A

Chelicerae

70
Q

In most spiders, gas exchange is carried out by _________ _______, stacked plate like structures

A

Book lungs

71
Q

Live as sessile colonies covered by tough exoskeletons

A

Bryozoans (Ectoprocts)

72
Q

Superficially resemble clams and other molluscs; have a unique stalk anchoring them to a substrate and a lophophore

A

Lamp shells (Brachiopods)

73
Q

Reduces water loss and prevents desiccation

A

Exoskeleton

74
Q

Provides structural support without the buoyancy of water

A

Exoskeleton

75
Q

What are the 4 major clades of Molluscs

A

Polyplacophora (chitons)
Gastropoda (snail and slugs)
Bivalvia (clams, oysters, and other bivalves)
Cephalopoda (squids, octopi, cuttlefish)

76
Q

Have no distinct head or radula

77
Q

3 lineages of Arthropods

A

Chelicerates (sea spiders, horseshoe crabs, scorpions, ticks, mites, and spiders)
Myriapods (centipedes and millipedes)
Pancrustaceans (insects, lobsters, shrimp, barnacles)

78
Q

Have poisonous claws; carnivores

A

Centipedes (Myriapods — Arthropods)

79
Q

Function in touch and smell in Arthropods

A

Eyes, olfactory receptors, and antennae

80
Q

Functions in gas exchange in insects

81
Q

Network of hydraulic canals, in Echinoderms, branches into tube feet that function in locomotion and feeding

A

Water vascular system

82
Q

Found in the mesohyl of the sponge

A

Amoebocytes and spicules

Biology 2 (33 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions