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worms

Total questions: 35

Worksheet time: 1hrs 21mins

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 the ventral side of the organism that helps movement

a)

Ganglia

b)

Setae

c)

Parapodia

d)

Nephridia

3.

Which of the following is a thickened segment of the earthworm’s body that is used in reproduction?

a)

Septa

b)

Setae

c)

Clitellium

d)

Ganglia

4.

Which of the following is a structure related to excretion in worms?

a)

Ganglia

b)

Gizzard

c)

Nephridia

d)

Crop

5.
Which phylum of worms are pseudoceolomates?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
6.
Which phylum includes hookworms, pinworms, and heart worms?
a)
Platyhelminthes
b)
Nematoda
c)
Annelida
7.
Most complex worm Phylum
a)
Phylum Platyhelminthes
b)
Phylum Nematoda
c)
Phylum Annelida
8.
What class? or subclass?
a)
Oligochaeta 
b)
Polychaeta
c)
Hirudinea
9.
What class? or subclass?
a)
Oligochaeta 
b)
Polychaeta
c)
Hirudinea
10.
What is structure A?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
11.
What is structure D?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
12.
Earthworms have setae, which are like bristles that help them ___.
a)
move
b)
eat
c)
reproduce
13.
Flat worms can reproduce 
a)
sexually 
b)
asexually
c)
both sexually and asexually
14.

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.

15.

Which worm phylum is more advanced?

a)

Platyhelminthes

b)

Annelida

16.

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

a)

No

b)

Yes

17.

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

a)

No

b)

Yes

18.

Are all flatworms parasites?

a)

Yes

b)

No

19.
What is the function of the Pharynx? 
a)
Attacks predators 
b)
Anchor the flatworm
c)
primitive, muscular mouth
20.
The mouth of a tapeworm is called:
a)
proglottid
b)
clitellum
c)
scolex
d)
prostomium
21.
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
22.
Which structure is NOT associated with digestion?
a)
Gizzard
b)
pharynx
c)
nephridia
d)
crop
23.
Which type of roundworm is the most life-threatening canine worm?
a)
Heartworm
b)
Pinworm
c)
Hookworm
d)
Liverworm
24.
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 
25.
What is the function of the scolex of a tapeworm?
a)
To attach to the intestinal wall of the host 
b)
To reproduce
c)
To get rid of waste
d)
To carry the eggs
26.
What are the nerve cell clusters called that act as a simple brain?
a)
Choanocytes
b)
Spicules
c)
Ganglia
d)
Parapodia
27.

This type of flatworm is free-living in freshwater and marine environments.

a)

fluke

b)

Planarian

c)

pinworm

d)

Tapeworm

28.

What is cephalization?

a)

Having male and female parts at the posterior end of the body..

b)

A concentration of sense organs and nervous system at the anterior end of the body.

c)

Feeding off of another organism either as a parasite or carnivore.

d)

Exchanging gases through a thin, moist layer of skin.

29.

What phylum?

a)

Platyhelminthes

b)

Nematoda

c)

Annelida

d)

Rotifera

30.

What type of symmetry do all worms have?

a)

bilateral

b)

radial

c)

asymmetry

d)

no symettry

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.

What is the definition of an "intermediate host"?

a)

An organism that lives on another organism.

b)

The organism that an adult parasite uses to get nutrition.

c)

The organism that finds food on its own.

d)

An organism that a larvae uses for food temporarily..

33.

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

a)

tegument

b)

clitellum

c)

cuticle

d)

nephridia

34.

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

a)

aortic arches

b)

crop

c)

pharynx

d)

sensory receptacles

35.

Where does an earthworm store its food

a)

gizzard

b)

pharynx

c)

esophogus

d)

crop

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