Lab 5 - Platyhelminthes Flashcards
Are platyhelminthes lophotrochozoa or ecdysozoa?
lophotrochozoa
What is the level of organization of platy?
organ system
How many germ layers do platy. have?
3 - triploblastic
What kind of body cavity do platy. have?
acoelom
What kind of symmetry do platy. have?
bilateral
What kind of digestion do platy. have?
Incomplete- pharynx
What kind of organisms are platyhelminthes?
flatworms
What kind of organisms are platyhelminthes?
flatworms
What kind of support do platy. have?
hydrostatic skeleton
Platy. - Locomotion
complex muscles (longitudinal and circular and dorsoventral), cilia
What kind of circulation do platy. have?
diffusion
What kind of sensory structures do platy. have?
cephalization, ocelli
How do platy. excrete?
flare bulbs
How do platy. reproduce?
sexual and asexual
Are platy. monoecious or dioecious?
mostly monoecious
What are the classes of platy?
turbellaria, trematoda, cestoda
What are trematoda?
flukes, parasites
Primary host
where sexual reproduction takes place
Intermediate host
where asexual reproduction takes place
How many primary hosts do trematoda have?
one
How many intermediate hosts do trematoda have?
two
What are cestoda?
tapeworms, parasitic
How many primary hosts do cestoda have?
one
How many intermediate hosts do cestoda have?
one
What do ocelli do?
detect light
What are turbellaria?
marine and freshwater flatworms
What is a scolex?
a structure that attaches to host’s intestine
What class has a scolex?
cestoda
Do flatworms shed cuticle?
NO
