6Th Lab Quiz

Front 1

function of oracle

Back 1

detect dissolved chemicals

Front 2

function of pharynx

Back 2

muscular extension of gastrovascular cavity used for ingesting food

Front 3

what is an acoemlomate

Back 3

animals whose central space is filed with tissue; lacking a body cavity

Front 4

what is a monoecious organism

Back 4

contains both male and female reproductive structures

Front 5

Why do you suppose the pharynx is centrally located on the body, as opposed to being located at the anteriorend of the animal?

Back 5

Its central location in the body permits a uniform delivery of nutrients to all portions ofthe body

Front 6

List several features of planaria that suggest adaptation to a free-living lifestyle.

Back 6

Cephalization and sensorystructures such as eyespots and auricles; reduced cuticle, more body space devoted to digestion

Front 7

What specifi purposedoes an excretory system serve?

Back 7

It rids the body of cellular wastes and plays a significant role in osmoregulationby concentrating toxic metabolic by-products and channeling them out of the body, while conserving water.

Front 8

Why do you suppose so much of the body cavity in flkes is devoted to reproductive structures?

Back 8

As internalparasites that ingest body fluids that need little digestion to extract nutrients, flukes do not require an extensivedigestive system

Front 9

Is the digestive system of flkes complete or incomplete?

Back 9

incompelete

Front 10

What are the two intermediate larval stages in the life cycle of flukes?

Back 10

Cercaria and miracidium

Front 11

What defensive provision do flukes possess for protection against the digestive enzymes of their hosts?

Back 11

the cuticle

Front 12

Describe the changes that occur in tapeworm proglottids as they mature.

Back 12

hey are shifted toward the rear of the body and gradually increase in size, with the male reproductive organs ofa given progrottid maturing fist, followed by the female reproductive organs.

Front 13

A true coelom is completely lined with:

a. epidermis

b. cilia

c. gastrodermis

d. mesoderm

e. flagella

Back 13

d. mesoderm

Front 14

what is egestion?

Back 14

the removal of indigestible material from the digestive system

Front 15

what is excretion?

Back 15

the removal of wastes produced by the actions of cellular metabolism

Front 16

Define cephalization and discuss its significance.

Back 16

the concentration of nervous tissue andsensory structures at the anterior end of the body, and has characterized all bilaterally symmetrical animalssince their origins.

Front 17

Why does the tapeworm lack a mouth, well-developed sensory structures, and a digestive system?

Back 17

their individual cells are able to absorb nutrientsfrom the host directly through the epidermis, making a mouth and digestive system unnecessary, Sensory organsare also unnecessary because tapeworms spend the adult portion of their life cycle inside the body, where sensoryorgans would not provide any additional advantages.

Front 18

Phylum and class

Back 18

Platyhelmnithes, class trematoda

Front 19

function of A

Back 19

Reproduction

Front 20

structure B

Back 20

uterus

Front 21

what does system foes C belong to

Back 21

digestive system

Front 22

function of D

Back 22

feeding

Front 23

what is the space in E

Back 23

gastrovascular cavity`

Front 24

phylum and class of these organisms

Back 24

platyhelminthes; turbulleria

Front 25

1

Back 25

pharynx

Front 26

2

Back 26

auricles

Front 27

3

Back 27

eyespots

Front 28

4

Back 28

gastrovascular cavity

Front 29

what class does this belong to

Back 29

Trematoda

Front 30

1

Back 30

oral sucker

Front 31

2

Back 31

intestine

Front 32

3

Back 32

uterus

Front 33

4

Back 33

pharynx

Front 34

5

Back 34

ventral sucker

Front 35

6

Back 35

yolk glands

Front 36

7

Back 36

ovary

Front 37

8

Back 37

testes

Front 38

9

Back 38

excretory bladder

Front 39

class and phylum

Back 39

taenia; platyhelminthes

Front 40

1

Back 40

scolex

Front 41

2

Back 41

immature proglottids

Front 42

3

Back 42

mature proglottids

Front 43

4

Back 43

gravid proglottid

Front 44

5

Back 44

vagina

Front 45

6

Back 45

hooks

Front 46

7

Back 46

genital pore

Front 47

8

Back 47

ovary

Front 48

9

Back 48

hooks

Front 49

10

Back 49

uterus

Front 50

a

Back 50

mouth

Front 51

b

Back 51

pharynx

Front 52

c

Back 52

intestine

Front 53

d

Back 53

pseudocoelom

Front 54

e

Back 54

genital pore

Front 55

f

Back 55

vagina

Front 56

g

Back 56

uteri

Front 57

h

Back 57

oviduct

Front 58

i

Back 58

ovary

Front 59

j

Back 59

vas deferens

Front 60

k

Back 60

testis

Front 61

l

Back 61

seminal vesicles

Front 62

m

Back 62

cuticle

Front 63

a

Back 63

dorsal nerve cord

Front 64

b

Back 64

intestine

Front 65

c

Back 65

ventral nerve cord

Front 66

d

Back 66

pseudocoelmon

Front 67

e

Back 67

testies

Front 68

f

Back 68

ovaries

Front 69

g

Back 69

oviduct

Front 70

h&i

Back 70

uterus; eggs

Front 71

what phylum does ascaris belong t

Back 71

nematoda

Front 72

what does the excretory pore do?

Back 72

releases metabolic wastes out of body

Front 73

what does the genital pore do

Back 73

receives sperm and sends it to seminal receptacle

Front 74

what is the scolex and what does it lack

Back 74

anterior end of tapeworm; lacks sensory structures

Front 75

does an immature proglottid have reproductive organs?

Back 75

no

Front 76

which part of the proglottid contains feritlized eggs, immature, mature, or gravid?

Back 76

gravid

Front 77

what are the lateral lines of the roundworm used for?

Back 77

release nitrogenous wastes in form of ammonia and urea

Front 78

what is the pseudocoelom

Back 78

body cavity line with gastrodermis and mesoderm on outside