Playthelminthes

Question 1

lacking a body cavity

Answer 1

acoelomate

Question 2

protrusible organ projected through mouth of Platyhelminthes

Answer 2

pharynx

Question 3

allows nutrients to pass through via lacunae in acanthocephala

Answer 3

tegument

Question 4

cestode larval stage prior to cyscercus

Answer 4

oncosphere

Question 5

body segments of tapeworms, the terminal end one full of eggs

Answer 5

proglottid

Question 6

head of tapeworm with a combo of hooks and suckers for attachment

Answer 6

scolex

Question 7

free swimming trematoda (fluke) larvae found in faeces of infected hosts

Answer 7

miracidium

Question 8

class of parasites often referred to as flukes

Answer 8

trematoda

Question 9

parasitic tapeworms that lack digestive tracts

Answer 9

cestoda

Question 10

class of tubellarians and flatworms

Answer 10

Class Acentrosomata

Question 11

a simple eye consisting of a single lens and a small number of sensory cells

Answer 11

ocellus

Question 12

angled projections from the sides of the head, which gives some flatworms’ heads an arrow-shaped appearance. Contains a concentration of nerve cells

Answer 12

Auricle

Question 13

rodlike structures in the cells of the epidermis or underlying parenchyma in certain turbellarians, and in the epidermis of nemerteans.

Answer 13

Rhabdites

Question 14

a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish.

Answer 14

Class Monogenea

Question 15

An attachment hook, sylet, or sucker found in the parasitic platyhelminthes

Answer 15

Opisthaptor

Question 16

the complex anterior attachment organ of a typical monogenetic trematode.

Answer 16

Prohaptor

Question 17

ciliated and free-living larva of a monogenean

Answer 17

Onchomiracidium

Question 18

a specialized sucker for parasitic adaptation in trematodes by which the worms are able to attach on the host

Answer 18

Acetabulum

Question 19

worm-like body structure

Answer 19

vermiform

Question 20

type of symmetry in Platyhelminthes

Answer 20

bilateral

Question 21

which phylum does cephalization start to show?

Answer 21

the flatworms

Question 22

distinct separation of the head

Answer 22

cephalization

Question 23

how do flatworms remove waste?

Answer 23

diffusion and protonephridia

Question 24

greater mobility requires ___ metabolism

Answer 24

greater

Question 25

class of free living platyhelminths

Answer 25

class acentrosomata

Question 26

how do flatworms in class acentrosomata move?

Answer 26

via mucus and ciliated ventral surface

Question 27

recycled nematocysts or acids

Answer 27

tubercles

Question 28

projectile like structure of flatworms that impales prey

Answer 28

stylet

Question 29

characteristics of a parasitic lifestyle

Answer 29

resistant outer epidermis, attachment structures, limited systems, high number of eggs

Question 30

definitive host of the flukes

Answer 30

vertebrates

Question 31

flatworm ectoparasites of fish that attack the gills

Answer 31

monogeaens