Flatworms

Question 1

What is the phylum name for Flatworms?

Answer 1

Platyhelminthes

Question 2

What are the 4 classes of Platyhelminthes?

Answer 2

1. Turbellaria
2. Monogenea
3. Trematoda
4. Cestoda

Question 3

The species Schistosoma is part of which class of Platyhelminthes?

A. Monogenea
B. Cestoda
C. Turbellaria
D. Trematoda

Answer 3

D. Trematoda

Question 4

The species Schistosoma

Is this species monecious or dioecious?

Answer 4

Dioecious

Question 5

Dugesia are part of what class?

1. Trematoda
2. Cestoda
3. Turbellaria
4. Monogenea

Answer 5

Turbellaria

Question 6

T/F: Dugesia can also be called planaria (planarian)

Answer 6

True!

Question 7

T/F: Planarians (such as Dugesia) are not very common and are not found in freshwater environments

Answer 7

False!

Question 8

T/F: The Dugesia species has a bilateral asymmetrical symmetry

Answer 8

False; They have bilateral symmetrical symmetry

Question 9

What is the opening through which food enters called in a Dugesia cross section?

Answer 9

Pharynx

Question 10

Dugesia

What is a columnar epithelium?

Answer 10

One of the 2 branches of the intestine

Question 11

Dugesia

Which of these two muscles circular or longitudinal, contract?

Answer 11

Longitudinal

Question 12

Dugesia

Which of the two muscles, circular or longitudinal, expand?

Answer 12

Circular

Question 13

Dugesia body parts

What is cephalization?

Answer 13

The concentration of sensing organs at the anterior (top) of the body that form a head and a brain

Question 14

Dugesia body parts

What are the paired spots on the head called?

Answer 14

Eye spots

Question 15

Dugesia body parts

What are the “flaps” on the side of the head called?

Answer 15

Auricle(s)

Question 16

Dugesia body parts

Do Planaria have body cavities?

Answer 16

No, they have a parenchyma which is in place of where a body cavity would normally be

Question 17

Dugesia body parts

Planarians have Rhabdites within the epidermis. What are these Rhabdites?

Answer 17

Mucus cells

Question 18

Dugesia body parts

T/F: Planarians do not have an intestine

Answer 18

False; they do!

Question 19

Dugesia body parts

The proboscis sheath is what body part?

Answer 19

The mouth; helps with feeding

Question 20

Dugesia body parts

FITB: The nerve cords have a ____-like system

Answer 20

Lateral

Question 21

Dugesia body parts

T/F: Cilia is lined along the “bottom” of the planaria

Answer 21

True

Question 22

The Monogenean fish fluke are [—–] parasites of the gills, skin and cloaca of fish

Answer 22

External

Question 23

What are the major external structures of the Monogenean fish fluke? (2)

Answer 23

1. Strong anterior sucker
2. Large posterior (end) ophistaptor w/hooks

Question 24

The [ ] liver fluke is part of which class of Platyhelminthes?

There will be 2 answers for this!

A. Trematoda
B. Monogenea
C. Cestoda
D. Turbellaria

Answer 24

1. Human
2. Trematoda

Question 25

The tapeworm is part of the __________ class

A. Turbellaria
B. Cestoda
C. Trematoda
D. Monogenea

Answer 25

B. Cestoda

Question 26

Tapeworm

The “scolex” is known as what type of body part?

Answer 26

The head

Question 27

Tapeworm

What does “gravid” mean?

Answer 27

Carrying eggs/young

Question 28

Tapeworm body parts

The ___________ proglottid is budded off the scolex at a fairly small size

1. Mature
2. Immature
3. Gravid

Answer 28

Immature

Question 29

Tapeworm body parts

The mature proglottid is **, ?-ecious, and have fully functional male and female reproductive organs

Answer 29

Sexual, mono-ecious