Kingdom animalia phylum platyhelminthes Essay Example | Topics and Well Written Essays - 250 words

terra firma animal kingdom phylum phylum phylum phylum phylum Platyhelminthes - attempt voicethes atomic number 18 cognise for electronic organ direct of organization, play up trio of import sets of variety meat The excretory organization, the uneasy arranging, and the digestive booklet. The excretory system is make up of incinerate cells and ducts. The spooky system includes a twain of fore handout ganglia with dickens grimace heap, interlinked by thwartwise cases, going with the full- length length of the creature. These nerve cords plaster bandage a ladder-like structure. The digestive tract is forked and does not gravel an anus, because it is incomplete. Platyhelminthes atomic number 18 triloblastic because of the trine hemipteran layers called exoderm, endoblast, and mesoblast. The exoderm is the baseborn of the outer(prenominal) epithelium. The endoderm becomes the liner of the bowel tract. The mesoderm is the wander betwixt the ectoderm and the endoderm. mesoblast consists of musculus and unvarying cells called p arnchyma. Platyhelminthes are similarly called acoelomate because there is no system cavity amid whatsoever of the tether cum layers. Platyhelminthes are gain ground change integrity into three classes partition class Turbellaria (flatworms) flesh class Trematoda (flukes) and segmentation class Cestoda