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Flashcards in Platyhelminthes Deck (6)
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1

What are the Platyhelminthes?

Flatworms

2

What are the general features?

Simple body plan, no coelom
May have lost coelom in evolution
Triploblastic
Cephelization - active movement
no gas exchange or circulatory organs

3

What are the classes?

Tuberlarians, Trematoda, cestoidea,

4

describe the Tuberlarians

Nearly all free living, predators or scavengers, not parasitic, move by gliding along layer of mucus, use muscles to swim in water, blind gastrovascular cavity

5

dESCRIBE THE TREMATODA

parasites, suckers attach to host. Live in different hosts over lifecycle, alternating sexual and asexual stages

6

Describe the cestoidea

Parasites of vertebrates, scolex attaches to host, more than one host