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27-1 to 27-2
worms and planaria etc.
20
Biology
11th Grade
02/01/2010

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Cards

Term
Phylum Platyhelminthes-
Definition
flatworms
Term
acoelomates-
Definition
no coelom (flatworm)
Term
flatworms have__ ____ ______, _________ _________, and ________________
Definition
3 germ layers, bilateral symmetry, and cephalization
Term
Class Turbellaria-
Definition
planaria (nice)
Term
free living (not parasitic), in-
Definition
fresh and marine waters (planaria)
Term
planaria respiration and circulation-
Definition
by diffusion
Term
planaria feeding-
Definition
pharynx (a muscular tube for bringing food)
Term
planaria excretion-
Definition
flame cells
Term
planaria body structure-
Definition
ladder of nerves, 2 ganglia (bundle of nerves), and 2 eyespots
Term
planaria reproduction-
Definition
asexual by regeneration, sexual-hermaphroditic
Term
Class Trematoda-
Definition
flukes (bad)
Term
flukes are-
Definition
parasitic, hermaphroditic
Term
fluke attachment-
Definition
suckers only
Term
flukes life cycle-
Definition
intermediate host is a snail
Term
blood fluke-
Definition
Schistosoma-can penetrate human skin, travels through circulatory and digestive systems- robs body of nutrition
Term
Class Cestoda-
Definition
tapeworms
Term
tapeworms are-
Definition
parasitic flatworms, hermaphroditic (greatly expanded reproductive system
Term
tapeworm body consists of-
Definition
scolex, proglottids, no digestive system
Term
scolex-
Definition
knob shaped head with hooks and suckers
Term
proglottids-
Definition
square body segments
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