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chpt 25 Worms

Total questions: 68

Worksheet time: 1hrs 18mins

Name
Class
Date
1.
Which phylum of worms has a bilateral symmetry, one-way digestive system, respiration through skin, hydrostatic skeleton and segmented body?
a)
Annelida
b)
Platyhelminthes
c)
Nemotoda
d)
Nemertea
2.
A stiff hair, bristle or bristle like process or part on an organism
a)
Ganglia
b)
Setae
c)
Parapodia
d)
Nephridia
3.
Which structure is NOT associated with digestion?
a)
Gizzard
b)
pharynx
c)
nephridia
d)
crop
4.
Which of the following is a thickened segment of the earthworm’s body is used in reproduction?
a)
Septa
b)
Setae
c)
Clitellium
d)
Ganglia
5.
Which phylum of worms are pseudoceolomates?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
6.
Which of the following is the evolutionary advancement first found in annelids?
a)
Three germ layers
b)
A complete digestive system
c)
Cephalization
d)
Coelomates (tube within a tube)
7.
Which of the following phyla contains  mostly parasitic roundworms?
a)
Annelida
b)
Cnidara
c)
Nematoda
d)
Platyhelminthes
8.
What is structure A?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
9.
What is structure D?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
10.
Earthworms have setae, which are like bristles that help them ___.
a)
move
b)
eat
c)
reproduce
11.
Flat worms can reproduce 
a)
sexually 
b)
asexually
c)
both sexually and asexually
12.

Annelids reproduce by what type of reproduction?

a)

Asexual

b)

Sexual

c)

Fragmentation

d)

Both asexual and sexual

13.

Annelids are hermaphrodites. Define this term.

a)

They have three tissue layers.

b)

They have a body cavity.

c)

They produce both egg and sperm.

d)

They can regenerate lost body parts.

14.

What type of symmetry do Platyhelminthes bodies have?

a)

bilateral

b)

radial

c)

asymmetrical

d)

both asymmetrical and radial

15.

This Bobbit worm has a segmented body. What Phylum of Marine Worm would that be?

a)

Platyhelminthes

b)

Annelida

c)

Tube Worm

d)

Nematoda

16.
What does "Polychaeta" mean?
a)
"Many Teeth"
b)
"Many Bristles"
c)
"Little Rings"
d)
"Sand Digger"
17.
SOME leaches are ______ because they feed on the blood of the host
a)
Suckers
b)
Parasitic
c)
Endoparastic
d)
All of the above
18.
Which phylum is the first to exhibit cephalization?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
d)
Cnidarian
19.
Which of the following is an pseudocoelomate?
a)
an organism such as Planaria that have no body cavity
b)
an organism such as a jellyfish with a central digestive cavity
c)
an organism such as a mammal with a body cavity lined with 2 layers of mesoderm
d)
an organism such as a Nematode (roundworm) that has a "false" body cavity
20.
Earthworms have ___ sets of muscles that help them move.
a)
1
b)
2
c)
3
d)
4
21.
Earthworms don't have teeth to grind their food so they use another organ to do so. It is called a ___.
a)
crop
b)
gizzard
c)
intestine 
d)
esophagus 
22.

What structures do tapeworms have for attaching themselves to the intestinal lining of their host? (multiple answers possible)

a)

suckers

b)

pharynx

c)

hooks

d)

silk glands

23.

Which structure is used by a planarian for feeding?

a)

cilia

b)

scolex

c)

sucker disc

d)

pharynx

24.

How does a tapeworm get its nutrition?

a)

Through its mouth and complex digestive system.

b)

Absorbs food in the host's intestine directly through its skin.

25.

They two eyespots of a planarian are _________________ .

a)

posterior

b)

ventral

c)

anterior

d)

lateral

26.

These cells are used as an excretory mechanism.

a)

flame cells

b)

mesenchyme

c)

nerve cells

d)

collar cells

27.

The simple brain of flatworms that consists of the nerve cells clustered in the anterior end.

a)

cephalization

b)

ganglia

c)

brain

d)

nerve net

28.

The knob-shaped head of tapeworms that contains hook/suckers to attach to host.

a)

proglottid

b)

mastax

c)

scolex

d)

choanocytes

29.

Where is the mouth of a flatworm usually located?

a)

anterior end

b)

posterior end

c)

dorsal side

d)

ventral side

30.

What is a group of cells that can detect light called?

a)

eye spots

b)

sun dial

c)

ocular cells

d)

pigmental segment

31.

Which of the following is a false statement?

a)

Earthworms aerate the soil

b)

Earthworms distribute organic matter

c)

Earthworms remove nutrients from soil

d)

Earthworms allow for water to go deeper into the soil

32.

Does the flatworm have a closed circulatory system with blood vessels/heart(s)?

a)

No

b)

Yes

33.

Does the annelid have a closed circulatory system with blood vessels/heart(s)?

a)

No

b)

Yes

34.

Are all flatworms parasites?

a)

Yes

b)

No

35.
What is an Acoelmate?
a)
Animal with false body cavity
b)
Animal lacking body cavity
c)
Animal with true body cavity
d)
Animal with cavities in its teeth
36.

The most outer skin covering on an earthworm that protects and keeps it moist

a)

tegument

b)

clitellum

c)

cuticle

d)

nephridia

37.

An Earthworm uses ___________________ to pump blood to its blood vessels.

a)

aortic arches

b)

crop

c)

pharynx

d)

sensory receptacles

38.

Where does an earthworm store its food

a)

gizzard

b)

pharynx

c)

esophogus

d)

crop

39.

What is special about the digestive system of flat worms?

a)

they don’t have one

b)

it is in 2 parallel lines that run down the body branching like a ladder

c)

they have small branching sacs so all the cells are close to food

d)

they digest through the cilia on their bodies

40.

What type of nervous system do flat worms have?

a)

nerve

net

b)

nerve

ladder

c)

nerve

A frame

d)

they

don’t have a nervous system

41.

How many embryonic layers do worms have?

a)

1

b)

2

c)

3

d)

4

42.
Flat worms have eyespots that function to
a)
detect light and move away from the light
b)
detect light and move towards the light
c)
detect food sources and move towards the source
d)
detect chemicals and move away from chemicals
43.
Why are scientists studying the flatworms, planarians?
a)
Insights into regeneration and stem cells.
b)
Insights into nutritional uses of algae.
c)
Insights into negative photoreceptors
d)
Insights into parasite life cycles 
44.
What is name of the anterior portion of a tapeworm that attaches to the intestinal lining?
a)
proglottid
b)
scolex
c)
eyespot
d)
ganglia
45.
Each section of a tapeworm is called a
a)
scolex
b)
proglottid
c)
segment
d)
eyespot
46.
Letter A represents the
a)
eyespots
b)
pharynx
c)
gastrovascular cavity
d)
ganglia
47.
Letter C represents
a)
Pharynx
b)
Eyespot
c)
Ganglia
d)
VentralNerve cords
48.
What type of symmetry do flatworms have?
a)
radial
b)
bilateral
c)
no symmetry
d)
cephalization
49.
How do planarians reproduce asexually?
a)
laying eggs
b)
they don't reproduce asexually
c)
regeneration of missing parts
d)
planarians fertilize their own eggs
50.
Which of the 3 types of flatworms we talked about are not parasites?
a)
planarians
b)
flukes
c)
tapeworms 
d)
roundworms 
51.

Roundworms are in the Phylum

a)

Nematoda

b)

Platyhelminthes

52.

Flatworms are in the Phylum

a)

Nematoda

b)

Platyhelminthes

53.

Two types of unsegmented worms are the roundworms and the flatworms.

a)

True

b)

False

54.

Flatworms have what kind of body cavity?

a)

Acoelomate

b)

Pseudocoelomate

c)

Coelomate

55.

Flatworms do not have gills or lungs and rely of diffusion through the skin to breathe

a)

True

b)

False

56.

The structure that acts as a kidney in a planarian flatworm is called:

a)

pharynx

b)

ganglia

c)

flame cell

57.

The muscular tube near the mouth that aids in getting food is called the:

a)

Pharynx

b)

Gastrovascular Cavity

c)

Flame cell

58.

The mesoderm germ layer refers to an animals:

a)

Lining of the digestive tract

b)

Muscular tissue

c)

Epidermis or Skin

59.

The planarian flatworm has a complete digestive tract with a distinctive mouth and anus.

a)

True

b)

False

60.

What type of symmetry do roundworms use?

a)

radial

b)

bilateral

c)

translational

d)

fission

61.

Which group is the first to have a complete digestive system meaning they have both a mouth and anus?

a)

Flatworms

b)

Roundworms

62.

Pinworms and Hookworms are examples from which group?

a)

Flatworms

b)

Roundworms

63.

This type of parasitic roundworm is contracted after consuming undercooked pork products.

a)

Trichinella

b)

Planarian

c)

Schistosomiasis

d)

Tapeworm

64.

Parasitic worm you can contract from walking on contaminated soil.

a)

Hookworm

b)

Tapeworm

c)

Guinea worm

d)

Planarian

65.
How do you describe a roundworm (Phylum Nematoda) body cavity?
a)
Acoelomate
b)
Pseudocoelomate
c)
Coelomate
d)
Does not apply
66.

How do roundworms get oxygen into their body's cells?

a)

respiratory trees in their body cavity

b)

through diffusion and osmosis through their skin

c)

they are anaerobic organisms and therefore do not need oxygen.

d)

oxygen enters through gills on their anterior end.

67.

What is cilia?

a)

Hair like structures under the worm

b)

Hair like structures along the side of the worm

c)

Hair like structures on top of the worm

68.

Cells that remove excess water from the planaria.

a)

flame cells

b)

rheoreceptors

c)

ocelli

d)

auricles

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