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WorksheetsPlatyhelminthes
Total questions: 25
Worksheet time: 25mins
Animals in Phylum Platyhelminthes have ______ Symmetry
Bilateral
Radial
Assymetrical
Good
Platyhelminthes possess _____ tissue (cell) layers
1
2
3
4
The digestive system of the Platyhelminthes has _____ opening(s).
4
3
2
1
Label this planarian.
pharynx
gastrovascular cavity
nerve cord
auricle
ocellus
neural ganglia
What kind of cells do flatworms remove waste with?
Stem cells
Endothelial cells
Muscle cells
Flame cells
The _____ is an example of Platyhelminthes.
tape worm
planarian
leech
earthworm
Platyhelminthes have _____ circulatory system.
no
central
open
closed
Which of the following are characteristics of Platyhelminthes?
radial symmetry
acoelomate
protostome
deuterostome
bilateral
This type of flatworm is free-living in freshwater and marine environments.
Trichinosis
Planarian
Schistosomiasis
Tapeworm
Cestoda
Free-living & Aquatic. Ciliated eternal surface. Mostly Hermaphrodite
Turbellaria
All are parasitic and called flukes. Great Economic and medicinal importance.
Trematoda
Commonly called tapeworms. All are endoparasites that reside in a vertebrate digestive system
True or false: Flatworms, when living on land, need high levels of moisture
True
False
What does Platyhelminthes mean?
(a)
How many species are in Phylum Platyhelminthes?
378
1000
20,000
100,000
Match the following
Proglottid
False Body Cavity
Parasitic
No Body Cavity
Pseudocoelomate
An organism that lives in or on another organism & benefits by drawing nutrients from the host
Acoelomate
Square on a tapeworms body, each is a reproductive sac
Scolex
Head of a tapeworm
Flatworms are in the Phylum
Nematoda
Platyhelminthes
Which of the following is a characteristic feature of Platyhelminthes?
Bilateral symmetry
Radial symmetry
Asymmetrical body
Segmented body
Platyhelminthes are primarily known for having how many germ layers?
One
Two
Three
Four
What type of digestive system do Platyhelminthes possess?
Complete with two openings
Incomplete with one opening
No digestive system
Multiple openings
Which cells are responsible for excretion in Platyhelminthes?
Flame cells
Nephridia
Malpighian tubules
Kidney cells
Which of the following is an example of a Platyhelminthes?
Earthworm
Leech
Tapeworm
Snail
Do Platyhelminthes have a circulatory system?
Yes, an open system
Yes, a closed system
No circulatory system
A partial system
Which class of Platyhelminthes includes free-living species?
Cestoda
Trematoda
Turbellaria
Nematoda
True or False: Platyhelminthes require a moist environment to survive.
True
False
What does the term 'Platyhelminthes' mean?
Roundworms
Flatworms
Segmented worms
Ringworms
Approximately how many species are classified under Phylum Platyhelminthes?
500
5,000
20,000
50,000
