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Flatworms

Total questions: 18

Worksheet time: 9mins

Name
Class
Date
1.

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

a)

True

b)

False

2.

What phylum do flatworms belong too?

a)

Annelida

b)

Platyhelminthes

c)

Nematoda

3.

Flatworms have what kind of body cavity?

a)

Acoelomate

b)

Pseudocoelomate

c)

Coelomate

4.

What kind of symmetry do flatworms have?

a)

They are asymmetrical

b)

Radial symmetry

c)

Bilateral Symmetry

5.

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

a)

True

b)

False

6.

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

a)

pharynx

b)

ganglia

c)

flame cell

7.

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

a)

Pharynx

b)

Gastrovascular Cavity

c)

Flame cell

8.

The planarian does not have a ganglia - small mass of nerves resembling a brain

a)

True

b)

False

9.

The structure that detects light in the planarian flatworm is the

a)

pharynx

b)

flame cells

c)

Eyespots

10.

Planarians are free-living. They do not need a host to survive.

a)

True

b)

False

11.

The mesoderm germ layer refers to an animals:

a)

Lining of the digestive tract

b)

Muscular tissue

c)

Epidermis or Skin

12.

The ectoderm germ layers refers to

a)

The lining of the digestive tract

b)

Muscle Tissue

c)

The epidermis or skin

13.

The endoderm germ layer refers to

a)

The lining of the digestive tract

b)

Muscle tissues

c)

The epidermis or skin

14.

The planarian flatworm uses a process called regeneration to reproduce asexually

a)

True

b)

False

15.

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

a)

True

b)

False

16.

Which structure is only found in parasitic flatworms

a)

Flame Cells

b)

Pharynx

c)

Scolex with hooks and suckers

d)

Eyespots

17.

What is the intermediate host of the Schistosoma blood fluke?

a)

Human

b)

Cat

c)

Snail

d)

Bat

18.

What is the primary host of the schistosoma blood fluke?

a)

Human

b)

Cat

c)

Snail

d)

Bat