Chapter 28- Invertebrate Evolution Flashcards Preview

Biology 104 > Chapter 28- Invertebrate Evolution > Flashcards

Flashcards in Chapter 28- Invertebrate Evolution Deck (120):
1

Protosome

First embryonic opening(blastopre) becomes mouth

2

Deuterstome

First opening(blastopore) becomes anus.

3

Lophotrochozoans bilaterally symmetrical at least in ____ stage of their development

One

4

Lophotrochozoans have ______ germ layers

Three (endoderm, mesoderm, and ectoderm)

5

___________ have the tissue level of organization as adults.

Lophotrochozoans

6

Lophotrochozoans can be divided into two groups:

Lochopores and trochophores

7

Lochophores include.....

Bryozoans and brachipods

8

Bryozoans and brachipods have a feeding apparatus called

Lochophore

9

Bryozoans can literally

Puke their guts out

10

Bryozoans can be

Fresh water and marine

11

Trochophores includes

Flatworms, rotifers, molluscs, and annelids

12

Flatworms- free-living

Planeria

13

Flatworms- parasitic

Flukes and tapeworms

14

Worm with extremely flat bodies that allow

Gas exchange via diffusion(don’t need a respiratory system)

15

Incomplete digestive system have only

One opening(a sac body plan)

16

Complete digestive system have

Two openings

17

Three basic tissue layers

Ectoderm, mesoderm, and endoderm

18

Planaria lives in

Freshwater habitats

19

Planaria head is bluntly

Arrow shaped

20

Planaria side extensions called _______ function as sense organs

Auricle

21

Planaria have two

Light-sensitive eye spots

22

Planaria systems

Digestive, nervous, reproductive, and excretory

23

Planaria have three kinds of muscle layers for movement

Outer circular, inner longitudinal, diagonal

24

Planarians use _______ to wrap around prey, then cover it with_______ and pin it down

Muscle & slime

25

_____________ extends through mouth to eat bits of prey

Pharynx or throat

26

Planarians ___________ system delivers nutrients and oxygen to the cells

Digestive

27

_________ is a bulb shaped cell with tuft of cilia inside

Flame cell

28

__________ system is connected by canals.

Flame cells

29

___________ functions in water excretion and osmotic regulation.

Excretory system

30

Planarians can reproduce

Sexually and asexually

31

Planarians can undergo

Regeneration

32

Planarians are __________ when it comes to sex type

Hermaphroditic

33

Planarians have a ________ type of nervous system

Ladder

34

Parasitic flatworms include

Flukes and tapeworms

35

Flatworms lack

Cephalization

36

Flatworms have a ____________ of reproductive system

Extensive development

37

Parasitic flatworms don’t need ______________ nervous or gatrovasular systems

Well developed

38

Parasitic flatworms use ____________ host to travel from primary host to primary host

Secondary

39

_____________ is infected with sexually mature adults

Primary host

40

___________ contains the larval stage

Secondary host

41

Flukes can be _________or __________ parasites

External or internal

42

_______\ have oval and elongate bodies

Flukes

43

Flukes head have an oral sucker surrounded by___________

Sensory papillae

44

_________ have reduced digestive, nervous, and excretory system

Flukes

45

Reproductive system is well-developed; have separated sexes

Flukes

46

Flukes inhabit _______,_______, and ______ of the host

Blood, liver, and lung

47

____________ flukes live closely associated with there counterpart.

Female blood fluke

48

___________ cause dysentery, anemia, bladder inflammation, brain damage, and severe liver complications

Schistosoma

49

_________ are internal parasites

Tapeworms

50

__________ has hooks and suckers for attachment to hosts intestinal wall

Scolex

51

Tapeworms have short________ begins head

Neck

52

Each_______ has a full set of male and female sex organs and little else

Proglottid

53

Tapeworms have no ___________ and only rudimentary nerves

Digestive system

54

___________ look like rice grans in animals stool.

Proglottid

55

After fertilization, ________ become a bag of eggs

Proglottid

56

Mature ___________ break off and pass out with feces

Proglottid

57

_______ is a hard- walled structure sheltering a larval work

Cyst

58

_________ are named for crown of cilia resembling a rotating wheel

Rotifers

59

Dessicate for a lengthy periods of time

Resurrection animacules

60

Rotifers are found in

Fresh water

61

Bivalves

Clams, oysters, and mussels

62

Gastropods

Slug, snails, and conchs

63

Cephalopods

Squid, octopus

64

______ and _________ adductor muscles pull the shell closed.

Anterior and posterior

65

___________ hinge can keep shell partly opened

Chitinous elastic

66

Phylum Mollusca is the ___________ animal phylum

Second largest

67

Phylum Mollusca occupy

Marine, freshwater, and terrestrial habitats

68

Include herbivores, carnivores, filter feeders, and parasite

Phylum Mollusca

69

Phylum Mollusca range from

Microscopic to the giant squad

70

Mollusca have three part body plan

Visceral Mass(organs)
Mantle(shell)
Foot(locomotion)

71

A rasping, tongue like organ that has teeth and is used in capturing food

Radula

72

Reduced and largely limited to area around heart

Coelom

73

Mollusca has a _______ circulatory system

Open

74

Heart pumps hemolymph through cavities(sinuses)

Hemocoel

75

Respiratory pigment is

Blue hemocyanin

76

Molluscs have a nervous system with

Ganglia

77

Have a two part shell that is hinged and closed by powerful muscles

Bivalves

78

Bivalves have _______ sexes

Separate

79

No head, no radula, and very little cephalization

Bivalves

80

_________ hang down within mantle cavity on either side of visceral

Ciliated gills

81

Bivalves are ________ feeders

Filter

82

Cephalopod have to be the most __________ of the ________

Complex & invertebrates

83

Well-developed eyes that focus like a camera

Cephalopods

84

Well developed brains with marked capacity of learning

Cephalopods

85

She’ll

Nautilus

86

Internal shell

Cuttlefish

87

No shell

Squid and octopus

88

Have ink sac for protection

Cephalopods

89

Arms for swimming and crawling

Octopus

90

Have elongated, flattened foot

Gastropoda

91

Gastropoda in aquatic species, ______ are found in the mantle

Gills

92

In terrestrial species, the mantle functions as the________

Lung

93

Well-developed head region: eyes and tentacles project from a

Coiled shell

94

Gastropoda are ________

Hermaprhodites

95

__________ positions the visceral mass directly above the foot

Torsion( twisting)

96

Annelida

Marine worms, leeches, earthworms( most are marine)

97

Ventral solid nerve

Annelida

98

Very specialized digestive tract

Annelida

99

Closed circulatory system

Annelida

100

Instead of burrowing in mid, _____ allows annelids to _______ on surface

Segmentation and crawl

101

Cephalization is apparent

Annelids

102

Excretory system of annelids consists of

Paired nephridia

103

Parapodia

Expanded appendages

104

Function as respiratory system for the exchange gases.

Parapodia

105

In Annelida, _________ develops into larva

Zygote

106

________ is the only time worms have sex organs.

Breeding season

107

Annelida classes:

Polchatea(marine)
Oligochaeta( terrestrial or freshwater)
Hirudinea(leeches)

108

Setae

Bristles

109

Pad-like appendages found most segments

Parapodia

110

Polychaeta have bundles of _______ attached to __________.

Setae and parapodia

111

In clam worms parapodia is used for _______ and _________[

Swimming and respiratory

112

Clam worm are ________

Free swimming

113

Sessile and filter feeders

Polychaeta

114

Found in freshwater and terrestrial environments

Oligochaeta

115

In oligochaetea, Most common example of is

Earthworm

116

Oligochaetea are___________ when it comes to gender

Hermaphroditic

117

-Body rings
-Coelom divides by septa
-Setae is most segments
-Ganglia and lateral nerves
-Nephrida
-branched blood vessel

Earthworms

118

Hiqudinea are usually found in

Fresh water

119

No setae and two suckers

Hirudina

120

Parasitic and fluid feeders

Hirudinea