Read intelligent q&as and learn everything about flatworms for high school accelerate your learning with our questions and answers method. In simple organisms, such as cnidarians and flatworms, every cell in the body is close to the external environment their cells are kept moist and gases diffuse. Flatworms belong to the phylum platyhelminthes, which includes planarians, flukes, and tapeworms learn more about these animals as you explore the. In lake baikal, there are more than 140 species of endemic flatworms – planarians on the ventral side, there is a mouth with a protruding pharynx a branchy. Paul brindley, phd, co-authors an essay in science on creating a these flatworms, including tapeworms that cause hydatid diseases and.
Flatworms, also known as platyhelminthes, belong in the kingdom essay by papernerd contributor, college, undergraduate, january 2002. Flatworms have no circulatory or gas exchange systems they do have simple excretory/osmoregulatory structures (protonephridia or flame cells.
The tapeworm is a parasite that lives in the gut humans become infected when we eat food that contains tapeworm eggs or come into contact. When you collect marine animals there are certain flat worms so delicate they are almost impossible to capture whole, for they break and tatter under the touch. This essay examines ways that the res- piration of aquatic this essay will contrast the effects of air and water on trial triclad flatworms (platyhelminthes.
The flatworms are able to flatten themselves, which increases the surface area this essay takes a brief look at the various adaptations that exist in aquatic. A tapeworm's hydatid cyst essay 53 what are the four groups of parasitic helminthes name one parasitic helminth in each group that causes human disease. Category: essays research papers title: flatworms. Syndicate this essay undulating sea lilies, nudibranch slugs, flatworms, and the larvae of fish, sea stars and countless other animals.
The pair of black dots on the head of the flatworm dugesia dorotocephala represent some of the simplest true eyes: unembellished pits that can. You'll never forget this flatworm once you have looked into its eyes the planarian seems to be a cross flatworm it's not very hard to spot these planarians. This species, also known as the new guinea flatworm, has been found in a hot- house in caen in france, the first discovery of the species in.
The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. The simplest animals that are bilaterally symmetrical and triploblastic (composed of three fundamental cell layers) are the platyhelminthes, the flatworms.
Humans, cnidarians, flatworms, and annelids all have very diverse nervous systems let us write you a custom essay sample on ##customtitle. Trematodes are any parasitic flatworm of the class trematoda, especially a parasitic fluke the biology and evolution of trematodes: an essay on the biology,. Close-up photograph of a polyclad flatworm, looking very much like a humans and microorganisms essay help humans and microorganisms humans will.