Platyhelmithes is phylum in the kingdom Animalia ( animals ) . This phylum flatworms enough all except Nemertinae , which used to be one of the classes in Platyhelminthes .
1 . The characteristics
Doseventral flat body and jointed - books . Ummnya , class of flatworms live in rivers , lakes , sea , or as parasites in the bodies of other organisms . This group of worms are very sensitive to light . Example ; Platyhelminthes is planaria are often found behind the rocks ( 2-3 cm long ) , Bapilium who live behind the moss moist ( up to 60 cm long ) , Clonorchis sinesis , liver flukes , and tapeworms .
2 . body structure
Palatyhelminthes is classified tripoblastik aselomata worm because it has 3 layers consisting of embryonic ectoderm , endoderma ,
and mesoderma . But this worm mesoderma not experienced a specialization so that the cells remain uniform and do not form a special cell .
3 . sisitem digestion
Digestion system flatworms called gastrovaskuler system , in which the circulation of the blood but food through the intestines . Flat cacin digestion system starts from the mouth , fangs , and continued to keronggkongan . Behind the esophagus are intestines which has branches throughout the body . Thus , in addition to digesting food , the gut also distribute food throughout the body .
In addition , disposing of leftover food by mouth because it has no anus . Flatworms have not had a transportation system because of its food in edearkan through gastrovakular system while the O2 and CO2 gas expelled from the body through the process of diffusion .
4 . The nervous system
There are several kinds of nervous system in flatworms
· Rope ladder nervous system , is the most simple nervous system . In the central nervous system called a ganglion yan brain . And both the brain ganglion nerve cord exit side extending at the left and right parts of the body which is connected with the transverse nerve fibers .
· In a more level flatworms , the nervous system can be composed of nerve cells ( neurons ) that differentiate into sensory nerve cells ( cells carrying signals from the senses to the brain ) , the motor nerve cells ( cells from the brain to the effector carrier ) , and cell association ( peranata ) .
5 . sense
Several types of flatworms have a oseli sensing system , which spots the eye that contains light-sensitive pigment . The eye spots are usually numbered and there is a section antorier pair ( head ) . The whole flatworms have penetrated senses and komoresptor cells throughout the body . Some species also have additional senses such as the auricle ( ear ) , statosista ( stabilizers ) , and reoreseptor ( organs to determine the direction of flow of the river ) . Generally flatworms have osomoregulasi system called protonerfida . This system consists of a vascular channel that ends in cell fire . Its discharge hole called protonefridiotor totaling pair or more . Meanwhile, remove metabolic waste in the body diffusion through the cell wall .
6 . reproduction
Flatworms can produce asexually by splitting and sexually by cross-breeding , even though the animal is classified as hermaphrodites .
7 . classification
Differentiated into three classes , namely :
· Class turbellarian a flatworm that uses fur shakes as a tool motion . For example : planaria
· Class Trematodes ( worms suction ) , has a suction tool that comes with tips for putting yourself on the host for this group live as parasites in humans and animals , for example: Trematodes are Fasciota ( liver fluke ) , Clonorchis , and Shistosoma .
· Class Cestoda have skin that is covered so that chitin is not polluted by enzymes in the gut of the host . This worm is a parasite in animals , is Taenia solium Contonya and T saginata species using skolasi to stick to the gut of the host . Taenia reproduce using fertilized eggs and larvae contained therein called onkosfer .
8 . Disease caused by Paltyhelmithes
Platyhelminthes can cause disease in humans and animals . Among the genus Schistosoma that can cause aksistosomiasis , parasitic disease is transmitted by freshwater snails in humans . When these worms thrive in the human body , can be tissue damage and organ such as the bladder , ureter , liver , affluent , and human kidney .
1 . The characteristics
Doseventral flat body and jointed - books . Ummnya , class of flatworms live in rivers , lakes , sea , or as parasites in the bodies of other organisms . This group of worms are very sensitive to light . Example ; Platyhelminthes is planaria are often found behind the rocks ( 2-3 cm long ) , Bapilium who live behind the moss moist ( up to 60 cm long ) , Clonorchis sinesis , liver flukes , and tapeworms .
2 . body structure
Palatyhelminthes is classified tripoblastik aselomata worm because it has 3 layers consisting of embryonic ectoderm , endoderma ,
and mesoderma . But this worm mesoderma not experienced a specialization so that the cells remain uniform and do not form a special cell .
3 . sisitem digestion
Digestion system flatworms called gastrovaskuler system , in which the circulation of the blood but food through the intestines . Flat cacin digestion system starts from the mouth , fangs , and continued to keronggkongan . Behind the esophagus are intestines which has branches throughout the body . Thus , in addition to digesting food , the gut also distribute food throughout the body .
In addition , disposing of leftover food by mouth because it has no anus . Flatworms have not had a transportation system because of its food in edearkan through gastrovakular system while the O2 and CO2 gas expelled from the body through the process of diffusion .
4 . The nervous system
There are several kinds of nervous system in flatworms
· Rope ladder nervous system , is the most simple nervous system . In the central nervous system called a ganglion yan brain . And both the brain ganglion nerve cord exit side extending at the left and right parts of the body which is connected with the transverse nerve fibers .
· In a more level flatworms , the nervous system can be composed of nerve cells ( neurons ) that differentiate into sensory nerve cells ( cells carrying signals from the senses to the brain ) , the motor nerve cells ( cells from the brain to the effector carrier ) , and cell association ( peranata ) .
5 . sense
Several types of flatworms have a oseli sensing system , which spots the eye that contains light-sensitive pigment . The eye spots are usually numbered and there is a section antorier pair ( head ) . The whole flatworms have penetrated senses and komoresptor cells throughout the body . Some species also have additional senses such as the auricle ( ear ) , statosista ( stabilizers ) , and reoreseptor ( organs to determine the direction of flow of the river ) . Generally flatworms have osomoregulasi system called protonerfida . This system consists of a vascular channel that ends in cell fire . Its discharge hole called protonefridiotor totaling pair or more . Meanwhile, remove metabolic waste in the body diffusion through the cell wall .
6 . reproduction
Flatworms can produce asexually by splitting and sexually by cross-breeding , even though the animal is classified as hermaphrodites .
7 . classification
Differentiated into three classes , namely :
· Class turbellarian a flatworm that uses fur shakes as a tool motion . For example : planaria
· Class Trematodes ( worms suction ) , has a suction tool that comes with tips for putting yourself on the host for this group live as parasites in humans and animals , for example: Trematodes are Fasciota ( liver fluke ) , Clonorchis , and Shistosoma .
· Class Cestoda have skin that is covered so that chitin is not polluted by enzymes in the gut of the host . This worm is a parasite in animals , is Taenia solium Contonya and T saginata species using skolasi to stick to the gut of the host . Taenia reproduce using fertilized eggs and larvae contained therein called onkosfer .
8 . Disease caused by Paltyhelmithes
Platyhelminthes can cause disease in humans and animals . Among the genus Schistosoma that can cause aksistosomiasis , parasitic disease is transmitted by freshwater snails in humans . When these worms thrive in the human body , can be tissue damage and organ such as the bladder , ureter , liver , affluent , and human kidney .
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