Phyla-plat,nematoda,and Annelida Plus Crossword Flashcards Preview

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Flashcards in Phyla-plat,nematoda,and Annelida Plus Crossword Deck (136):
1

Phylum platyhelminthes include

Flatworms

2

Flatworms are :
Body structure

Soft bodied

3

Flat worms have :

Tissues and internal organs

4

Phylum Platyhelminthes have ___ layers

Theee embryonic germ layers

5

Phylum Platyhelminthes (___) have ____ symmetry

Flatworms
Bilateral

6

Cephalization :

Has a head

7

Acoelomates:

Without coelom

8

Fluid filled body cavity lined with tissue derived from mesoderm

Coelom

9

Digestive cavity is lined with

Endoderm

10

PP: rely on ___ for 3

Diffusion
Respiration
Excretion
Circulation

11

PP: have ____ systems for (4)

Organ
Digestion
Excretion
Response
Reproduction

12

Ancestors of parasitic worms:

PP: simpler body structures than free-living ancestors

13

PP: # opening/s/ for mouth and anus

Single

14

PP: near mouth:

Muscular tube called the Pharynx

15

PP:the pharynx extends out the mouth in order to:

Pump food into the digestive cavity

16

PP: digestion and absorption takes place in the ___

Gut

17

PP: nutrients __ to other parts of the body

Diffuse

18

Parasitic worms feed on :

Blood, tissue fluids, or pieces of cell from its host

19

PP:parasitic worms feed on ___ food and have __\ digestive systems

Already digested
Simple

20

PP: circulatory system not needed to transport materials because of

Flat bodies

21

PP: lack

Gills and other respiratory organs , heart , blood vessels, and blood

22

___ cells are found in some flat worms

Flame

23

Flatworms: flame cells: for --- and examples

Excretion of excess water
And filters and removes metabolic wastes (urea and ammonia)

24

pp: flame cells are joined in networks of _ that empties TO outside environment through ___ in skin

Tubes
Podes

25

PP: response : head encloses several:

Ganglia

26

PP: ganglia

Controls nervous system

27

pp: how many longitudinal nerve cords and how many shorter latitutidinal nerve cords

2
Several

28

PP: longitudinal nerve cords located :
Shorter latitudinal nerve cords located:

Along length of body
Across the body

29

Many flatworms have ___ that detect light

Eyespots

30

Flatworms have specialized cells for detecting other external stimuli scattered throughout body :

Locate food
Find dark hiding places

31

Pp: feeding

Carnivorous
Scavengers

32

Pp: movement via __ on __cells facilitate gliding through water and over surfaces

Cilia
Epidermal

33

Pp: muscle cells enable :

Turning and twisting

34

Most free-living flatworms are :

Hermaphrodites

35

pp: hermaphrodites : have ____ reproductive organs

Both male and female

36

Pp:hermaphrodite : asexual reproduction can occur via ___

Fission

37

Fission

Splitting in 2

38

Some species of worms ____ with each other to smaller pieces regenerating to become ___

Fall to pieces
New individual

39

Group of flatworms

1. Turbellarians
2. Flukes
3. Tapeworms

40

Turbellarians: class

Turbellaria

41

Tur: what type of flatworms

Freeliving

42

Where do freeliving flatworms live

Marine or freshwater environment

43

Most familiar freeliving flatworms :

Planarians : Cross eyed freshwater

44

Flukes class

Trematoda

45

Tapeworms class:

Cestoda

46

Parasitic flatworms found in :

Internal organs or blood of host

47

Flukes: practice flatworms may be _ parasites meaning found on skin mouth fills or other otside

External

48

Tapeworms:Cestoda : body structure

Long and flat

49

Tapeworms : cês: found in

Intestines of host

50

Tapeworms :cês;
_____of host is absorbed directly into body of tapeworm

Digested food

51

Structure of tapeworm: ces:
Head has ____
Behind ^^^ is a narrow region that divides into ____

Scolex
Proglottids

52

Scolex: contains

Suckers on anchoring to hosts intestinal walls

53

Proglottids : is AND are

Segments of tapeworms body
Hermaphroditic

54

Tapeworms :cês: can fertilize :

Own eggs or other individuals' eggs

55

Tapeworms:cês: after eggs fertilized, ___break off and burst to release ___ to be passed out with ___

Proglottids
Zygotes
Feces

56

Tapeworms :cês: larvae develope into ___ stage -> ___

Dormant
Cyst

57

Phylum Nematoda :

Roundworms

58

Phylum Nematoda : round worms
Body structure

Slender

59

Roundworms : segmentation

Unsegmented with tapering in ends

60

Roundworms size

From microscopic to a metre in length

61

Round worms habitat

Freeliving in soul, salt flats, aquatic sediments and water

62

Round worms geographic distribution:

Poor regions to tropics

63

Roundworms are PARASITIC

Parasitic

64

Round worms have how many germ layers

3

65

Roundworm body cavity is located

Between endoderm and mesoderm tissues

66

Round worms has ___ body cavity

Pseudocoelom

67

Pseucoloem

Body cavity only partially lined with mesodermal tissue

68

Pseudocoelom "_"

False coelom

69

Roundworms : # digestive tract opening

2

70

Roundworms tract openings:

Tube within a tube

71

Roundworms:
Inner tube:
Outer tube

Digestive tract
Body wall

72

Roundworms: food goes # way

1

73

Roundworms are what type of hunter

Predators

74

Roundworms eat

Algae
Fungi
Detritus

75

Roundworms: exchange__ and ___wastes through body walls via ___

Gases
Metabolic
Diffusion

76

Roundworms have no. ___ system

Internal transport

77

Roundworms have a ___ nervous system

Simple w ganglia

78

Roundworms : nerves transmit:

Sensory info and control movement

79

Roundworms : muscles extend length of body w fluid in _____ function as _____ ______

Pseudocoelom
Hydrostatic skeleton

80

Roundworms reproduction:

Sexual

81

Roundworms have ___ sexes

Separate

82

Roundworms have ____ fertilization

Internal

83

Parasitic roundworms have # different ____ or several _____ within a single host

2 or 3
Hosts
Organs

84

Trichinosis -

Causing worms

85

Trichinosis : found in

Intestines of host

86

Trichinosis : female enter by:

Burrowing into intestinal walls and releases larvae

87

Trichinosis : when larvae is placed, it travels through: and into

Blood stream and then into organs and tissues

88

Trichinosis: larvae forms __ and becomes inactive in host muscle tissue

Cyst

89

Trichinosis: life cycle complete when :

Host muscle is eaten

90

Trichinosis : found in

Pugs and rats

91

Filarial worms : found in

Tropical regions of Asia

92

Filarial worms lives in

Lymph vessels of birds and mammals

93

Filarial worms transmitted through

Insect bites

94

Filarial worms example

Elephantiasis

95

Ascaris worms causes

Malnutrition in humans and other vertebrates

96

Ascarid worms absorbs

Digested food in small intestines of host

97

Hookworms : entered host through ___ into ___ travelling to __ and then ___ to absorb digested food

Unprotected feet ad into bloodstream
travelling to lungs
and then intestines to absorb digested food

98

Phylum Annelida refers to " " and ____

Little ring
Worms' body segments

99

Annelida: segments separated by ___

Septa

100

Septa

Internal walls between segments

101

Annelida : segments have specialized functions :

Sensory > eyes
Respiration

102

Many Annelida have ___ on segments which are ____

Setae
Bristles

103

Annelida have true

True Coelom

104

Annelida hunting tech

Filter feeders to predators

105

Annelids are (eat style species )

Carnivorous

106

Annelid have sharp ___ in __

Jaws
Pharynx

107

Detroitvores have ___ in pharynx

Mucus

108

Earthworms pump ___&___ into esophagus into ___ and then ____ and then ___tract

Food and soil
Crop
Gizzard
Digestive

109

Crop

Food storage

110

Gizzard

Grind food

111

Digestive Tract

Absorption

112

Annelida: what type of circulatory system

Closed

113

Aquatic annelids have

Gills

114

Earthworms diffuse gases through______\______

Moist skin

115

Annelida excretion:
Waste exits through

Anus

116

Annelida : nitrogenous wastes in cells removed through ___

Nephridia

117

Nephridia

Excretory organs that filter fluid in coelom

118

Annelida :: ___ nervous system

Well developed

119

Annelida : variety of adaptions for detecting stimuli : (4)

Sensory tentacles
Chemical receptors
Statocysts
Two or more pairs of eyes

120

Statocysts

Detect gravity

121

Annelida: ___&____ muscles for ____ skeleton

Longitudinal
Circular
Hydrostatic

122

Marine annelids have :

Parapodia

123

Parapodia

Paddle-like appendages for crawling and swimming

124

Annelida: reproduction and fertilization

Sexual
External and internal

125

Annelida: separate sexes for some species other than __

Hermaphroditic

126

Annelida : some have self __

Fertilization

127

Groups of Annelids

Oligochaeta
Hirudinea

128

Oligo: include

Earthworms and relatives

129

Hirudinea include

Leeches

130

Oligo bodies : and few

Streamlined Setae

131

Oligo live

Soil and fresh water

132

Hirundinea are :

External parasites that suck on blood and fluid from host

133

Leeches are

Carnvivourous

134

Ecology of annelids : earthworms ___ soil and ___soil for plant growth

Aerate
Loosen

135

Annelids are _( compost))

Decomposers

136

Annelida are preys for

Birds
Reptiles
Fish