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Flatworms
The phylum Platyhelminthes (aka flatworms) are rather primitive invertebrates that can be either parasitic or non-parasitic depending upon the species. They have no body cavity, no circulatory organs and no respiratory organs. Questions about flatworms can be asked and answered here.
383 Questions
I Think It Lives In The Water
Where It Is Deep And Dark.
Where can you purchase Fluke tester equipment?
Fluke tester equipment can be purchased at Canadian Tire, Lowe's as well as Home Hardware. One would use this to test wiring or electrical voltage. Prices vary depending on style and model.
Are planaria harmful to humans?
They are not economically important to humans. This is because, being aquatic, animal-like organisms, they don't officially belong to any country. Planarian worms come to America, Great Britain, France, China, South Africa, Canada, Russia, etc. looking for jobs. They take jobs illegally, make money that belongs to that country, but don't give anything back because they don't pay taxes. They were the economic downfall of Greece, and if you don't watch out, they'll be your country's downfall, too.
What are the special characteristics about flatworms?
1)Bilaterally symmetrical.
2)Body having 3 layers of tissues with organs and organelles.
3)Body contains no internal cavity.
4)Possesses a blind gut (i.e. it has a mouth but no anus)
5)Has Protonephridial excretory organs instead of an anus.
6)Has normally a nervous system of longitudinal fibres rather than a net.
7)Generally dorsoventrally flattened.
8)Reproduction mostly sexual as hermaphrodites.
9)Mostly they feed on animals and other smaller life forms.
10)Some species occur in all major habitats, including many as parasites of other animals.
species of schistosomes . Schistosoma mansoni is widespread in Africa, the Eastern-Mediterranean, the Caribbean, and South America and can only infect humans and rodents.
What kind of symmetry do flatworms have?
Flatworms have bilateral symmetry. Bilateral symmetry means the animal has symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.
How long does a flatworm live?
Are you asking: "how long does a flatworm live?"
If so, this is not an answerable question--there are too many types of flatworms to make a generalization.
I personally know of one type of flatworm which can re-generate--cut off any part of it's body, and that part will re-generate. As long as the head remains attached, the re-generation can take place.
I did a science project using freshwater planarians, where I explored this phenomenon.
Is heartworm caused by flatworms?
No, a heartworm is worm that slowly...eats(one way to put it) the heart of any animal or human. a roundworm doesnt really cause much harm. Its a worm that takes the shape of a circle undera small bit of skin. its visual
What are 5 examples of a flatworm?
Flatworms - classified as having a flat leaf or flat ribbon shaped body and a pair of eyes up front. Most are parasitic.
Examples of the flatworm include Tricladida, flukes, and tapeworms.
Roundworms (aka nematodes) - has over 80,000 species which many of are parasitic. They have round bodies of varied sizes.
Examples of the roundworm include whipworms, hookworms, and pinworms.
Segmented Worms - As their name describes, their bodies are divided into segments.
Examples of the segmented worm include the bristle worm and earthworms.
No flatworms do NOT have nostrils they have eyes and the ability to regenerate damaged parts of their body but no nostrils.
No, flatworms are from the phylum Platyhelminthes, while worms are from the phylum Annelidia. Worms are more developed and have a coelum, while flatworms have no coelum at all.
What do flatworms roundworms and segment worms have in common?
flatworms arent round but flatworms look like pancakes. they both belong to the invertabre group and have similar internal organs.
What are the medical importance of flatworms?
Flatworms are important to nature as they can be an indicator of changes in the habitat because they are sensitive to water and indicate reduced oxygen, among other things. They are also important because the ecosystem is based on all living creatures and the flatworms eat the tiny plans and animals that go unseen and then when they are eaten by fish or aquatic insects the base of the food chains that the flatworms ate then become part of the larger ecosystem food chain.
Compare and contrast the body of a flatworm to the body plan of a roundworm?
Flatworms are considered acoelomate, since they have no body cavity, and roundworms are pseudocoelomate because they have a body cavity, but it is not derived from the splitting of the mesoderm tissue.
Also, flatworms only have one opening in their digestive system unlike roundworms with two.
Yes, flat worms do have true tissues since they posses a mesoderm and are tripoblastic bacause of this.
However, these organisms do not posses a body cavity and no specialized circulatory or respiratory organs.
