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Platyhelminthes

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Most flatworms have this type of digestion.

a)

one- way

b)

two-way

c)

diffusion

d)

autotrophic

2.

Structures that remove excess water in flatworms.

a)

pharynx

b)

flame cells

c)

gastrovascular cavity

d)

cerebral ganglia

3.

What best describes the pharynx in flatworms?

a)

digests and absorbs nutrients

b)

eliminates excess water wastes

c)

muscular feeding tube

d)

aids in reproduction

4.

How can flatworms reproduce?

a)

sexually

b)

regeneration

c)

fission

d)

all of these

5.

These can be endoparasites or ectoparasites.

a)

flukes

b)

tapeworms

c)

planarians

d)

earthworms

6.

What is the purpose of tegument?

a)

It's a sensory structure.

b)

It aids in reproduction.

c)

It protects the parasite from the host's immune system.

d)

It aids in excretion.

7.

Snails are often the _________ host in the fluke's life cycle.

a)

primary

b)

intermediate

c)

secondary

d)

first

8.

In which type of host does the parasite live as an adult and reproduce?

a)

primary

b)

secondary

c)

intermediate

d)

unofficial

9.

Parasites often kill their hosts.

a)

true

b)

false

10.

Class Cestoda

a)

ringworms

b)

tapeworms

c)

flukes

d)

roundworms

11.

Structure used by tapeworms to attach to their host.

a)

suckers

b)

hooks

c)

scolex

d)

proglottids

12.

A tapeworm has a mouth

a)

true

b)

false

13.

Segments of a tapeworm that break off and exit through the feces.

a)

tegument

b)

scolex

c)

proglottids

d)

neck

14.

intermediate host of beef tapeworm

a)

cow

b)

human

c)

any mammal

d)

snail

15.

method of pork tapeworm transmission

a)

undercooked meat

b)

ingesting contaminated feces

c)

drinking contaminated water

d)

stepping on contaminated feces

16.

intermediate host of tapeworms in dogs and cats

a)

fleas

b)

snails

c)

mosquitoes

d)

rodents

17.

symptoms of tapeworms

a)

seizures

b)

rectal bleeding

c)

anal itching

d)

weight loss

18.

cysts

a)

form in the muscles of the intermediate host of a tapeworm

b)

form in the stomach of the primary host of a tapeworm

c)

if eaten, will ALWAYS cause a tapeworm infection

d)

can be easily seen in infected meat

19.

Flatworms capable of regeneration

a)

flukes

b)

tapeworms

c)

planarians

d)

nematodes

20.

ALL members of Phylum Platyhelminthes have a gastrovascular cavity.

a)

true

b)

false