are flatworms, and are characterized by being acoelomate, triploblastic, and having a simple bilateral symmetry (Berkley.edu). The P. westermani is a member of the Trematoda class. Trematodas are flukes (parasite flatworms) that live inside vertebrates as their primary hosts and inside mollusks as intermediate hosts (wikipedia.org-trematoda). The parasite’s order is Plagiochiformes and suborder is Plagiochiata. The family of the P. westermani is Troglotrematidae. Organisms in this family are oval-shaped
may cause numerous symptoms. Clinical symptoms are usually diarrhea, nausea, and weakness. Also, the health of the person may be compromised. Tapeworms may also disable a person’s ability to absorb vitamin B12. Flukes(parasitic) Flukes, Class Trematoda, are mostly internal parasites of animals, particularly vertebrates. In fluke life cycles, eggs are shed into the intestine or bladder for quick exit into water. An egg hatches into a larva, which swims about until it finds a snail (clam in a few
of a kind because it has a head. It is different from the Cnidarians because it is has three body layers or in other words it is triploblastic. It has an endoderm, mesoderm, and ectoderm. This animal displays four classes: Turbellaria, Monogenea, Trematoda, and Cestoda. Back to the main idea of the Platyhelminthes, the head directs the animal around its environment, and controls the sensory structures. It has a top dorsal and bottom ventral on their body structure. Some characteristics that are identified
Flatworms belong to the phylum Platyhelminthes. They have the simplest body plan of all bilaterally symmetrical animals. They are called flatworms because their bodies are compressed. The mouth is the only opening into the digestive cavity the flatworms have. Food is taken in through this hole and wastes are discharged also through this hole. Flatworms have a well-defined nervous, muscular, excretory, and reproductive system. The flatworm distributes the food it digests through a digestive tube that