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CHARACTERISTICS
• Flatworm
• Habitat: marine, fresh water & moist land
• Triploblastic acoelomates and bilateral symetry
• Free-living or parasite
• Respiration by difussion
• Food digested in gastrovascular cavity
CLASSIFICATION
PLATIHELMINTHES
TURBELARIA
Planaria
TREMATODA
Schistosoma sp (C. Darah)Fasciola hepatica (C. Hati)
Chlonorchis sinensis (C. Hati manusia)
CESTODA
Taenia soliumTaenia
saginata
1. TURBELARIA
• Digestion : scavenging for bits and decaying plant and animal matter; prey on smaller organisms like protozoa. Food ingested and digest in gastrovascular cavity through pharynx; absorb nutrient and diffuse to another cells
2. TREMATODA (FLUKES)
Digestion :
• The fluke feeds on cells, blood, and other fluids of the host organism (paracitic)
• covering by tegument
• Have sucker (anterior and ventral) and hooks adaptation for parasitic worms
Life Cycle :
Host : Human and snail; fish or frog
Mature flukes in bloodvessels of intestine
Humanhost
Snail host
1 Sexual reproductionof flukes in human;fertilized eggs passout in feces
2 Eggs hatchin water
3 Larvathatinfectssnail
4 Asexual reproductionof flukes in snail
5 Larva thatinfects human
6 Larva penetratesskin andblood vessels
3. CESTODA (TAPEWORM)
Structure :
• The body surrounded by tegument;
• at anterior end contain scolex which has hooks and sucker;
• behind neck there are thousand proglotids; lack of digestive system.
Life Cycle :
Host : Human; cow or pig