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LHS Zo Planarians / Flat Worms

Total questions: 29

Worksheet time: 22mins

Name
Class
Date
1.

What is the scolex on a tapeworm?

a)

Clusters of nerve cells that serve as a brain

b)

The head of the tapeworm

c)

The body section that contains the male and female reproductive structures

d)

The end of a tapeworm where things exit

2.
Name a parasitic roundworm 
a)
leach 
b)
hookworm
c)
tapeworm
d)
worm
3.
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
4.
What type of symmetry do flatworms have?
a)
radial
b)
bilateral
c)
no symmetry
d)
cephalization
5.
Planarians can reproduce sexually and asexually
a)
true
b)
false
6.
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
7.
Planaria
a)
Phylum Platyhelminthes
b)
Phylum Nematoda
c)
Phylum Annelida
8.
What is structure A?
a)
flame cell
b)
pharynx
c)
ganglion
d)
ocelli
9.

What is structure C?

a)

flame cell

b)

pharynx

c)

ganglion

d)

ocelli or eye spot

10.

What is structure D?

a)

flame cell

b)

pharynx

c)

ganglion

d)

ocelli

11.
When an animal regrows a missing body part it has...
a)
Budded
b)
Regenerated
12.

Planaria are...

a)

free-living

b)

parasitic

c)

roundworms

d)

nematodes

13.
Organ on the middle of the ventral side of planarians that takes in their food
a)
eyespots
b)
pharynx
c)
tegument 
d)
proglottids
14.
Animals that live and feed off other animals are called ________
a)
planarians
b)
parasites
c)
proglottids
d)
teguments 
15.

The body segments of tapeworms...

a)

produce eggs

b)

are called the scolex

c)

are covered in hooks

d)

show radial symmetry

16.

Which phylum do roundworms belong to?

a)

Turbellaria

b)

Platyhelminthes

c)

Nematoda

d)

Porifera

17.

Concentration of nerves and other sensory organs on the anterior (front) end of the body is called____

a)

stereo sensory

b)

cestoda

c)

cephalization

d)

symmetry

18.

How many cell layers do flatworms have?

a)

1

b)

2

c)

3

d)

4

19.

What is an animal that has both male and female organs?

a)

Acoelomate

b)

Intersex

c)

Hermaphrodite

20.
What are some characteristics of ROUNDWORMS?
a)
*flat, soft bodies*planaria- regenerate body parts*tapeworm (parasite*eyespots to detect light
b)
*ringed/segmented sections*simplest animal with brain
c)
*smooth, thin, tube-like bodies*two body openings (mouth/anus)
21.
How do worms exchange oxygen with their environment?
a)
lungs
b)
skin
c)
mouth
22.
Blood fluke
a)
Schistosoma
b)
Chlonorchis sinensis
c)
Taenia saginatus
d)
Diplidium caninum
23.
Identify the blue structure.
a)
Auricle
b)
Pharynx
c)
Eyespot
d)
Gastrovascular Cavity
24.
Identify the blue structure.
a)
Lateral Nerve Cord
b)
Eye Spot
c)
Pharynx
d)
Ganglia
25.
Identify the blue structure.
a)
Lateral Nerve Cord
b)
Gastrovascular Cavity
c)
Auricle
d)
Pharynx
26.
What is the function of the flame cell?
a)
Aid in intercellular digestion.
b)
Create sexual reproductive cells.
c)
Sense light.
d)
Removes cellular waste.
27.
Specialized organs that absorb light on a planarian are...
a)
Auricles
b)
Cillia
c)
Eye spots
d)
Flame Cells
28.

Number of people worldwide that suffer from Schistosomiasis each year?

a)

200,000

b)

2 million

c)

200 million

d)

2 billion

29.

Schistosomes usually infect how many organisms in their overall life cycle. (human schistosomes)

a)

1

b)

2

c)

3

d)

4

e)

5

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