0
monogenea are ectoparasitic while trematoda are endoparasitic
1 answer
The scientific name for flatworms is Platyhelminthes.
3 answers
A very rare disease which causes monkeys and apes to go berserk and try to rip your t e s t i c l e s off...
1 answer
Flatworms are divided into two groups, parasitic and nonparasitic. The parasitic types, which live off of other organisms, consist of Cestoda, Trematoda, and Monogenea flatworms.
2 answers
Mohamed Saleh Al Yousif has written:
'Fine structure and spermatogenesis in Microcotyle sebastis (Goto) 1894 (Monogenea)' -- subject(s): Fishes, Diseases, Fish gill fluke
1 answer
Flatworms are divided into two groups, parasitic and nonparasitic. The parasitic types, which live off of other organisms, consist of Cestoda, Trematoda, and Monogenea flatworms.
4 answers
Platyhelminthes as a phylum is divided into 4 classes. The tapeworm class (Cestoda) is endoparasitic. This means they live parasitically inside a host. There is also the ectoparasitic class Monogenea which lives parasitically on the outside of a host.
There are marine specimens and those that live in other moist environments. This is the class Turbellaria.
7 answers
The scientific name for the species of flatworms is Platyhelminthes.
4 answers
Type of worms are:
* Acoelomorpha * Platyhelminthes (flatworms) * Cestoda (tapeworms)
** Trematoda (flukes)
** Monogenea ** Turbellaria (planarians)
* Acanthocephales * Kinorhyncha (mud dragons)
* Annelida (segmented worms) * Polychaeta
** Oligochaeta ** Hirudinida (leeches)
* Nemertea (ribbon worms) * Echiura (spoon worms) * Sipuncula (peanut worms) * Nematoda(roundworms)
* Nematomorpha (horsehair worms or gordian worms) * Priapulida (penis worms) * Gnathostomulida (jaw worms)
1 answer
There are three main subgroups within the phylum Platyhelminthes: Turbellaria (free-living flatworms), Trematoda (flukes), and Cestoda (tapeworms). Each subgroup consists of various species with unique characteristics and ecological roles.
2 answers
The simplest bilateral animal is considered to be a flatworm, such as a planarian. These animals have a simple body structure with bilateral symmetry, a central nervous system, and a digestive system. They are an example of simple, yet successful, bilateral organisms.
4 answers
There are different types of worms, including earthworms, roundworms, flatworms, and tapeworms. Each type of worm has unique characteristics and can serve various ecological roles or pose health risks to humans and animals.
3 answers
Platyhelminthes, also known as flatworms, are characterized by a flattened body shape with bilateral symmetry. They lack a body cavity (coelom) and possess a primitive nervous system. Many flatworms are parasitic and have simple digestive systems with a single opening for both ingestion and waste elimination.
2 answers
Any aquatic invertebrate could be described that way. Perhaps the term "marine invertebrate" is what you are looking for.
Invertebrate sea life includes the following phyla:
- Acoela;
- Annelida, (polychaetes and sea leeches);
- Brachiopoda;
- Bryozoa, also known as moss animals or sea mats;
- Chaetognatha;
- Cephalochordata;
- Cnidaria, such as jellyfish, sea anemones, and corals;
- Crustacea, including lobsters, crabs, shrimp, crayfish, barnacles, hermit crabs, mantis shrimps, and copepods;
- Ctenophora, also known as comb jellies;
- Echinodermata, including sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers, crinoids, and sea daisies;
- Echiura;
- Gnathostomulids;
- Gastrotricha;
- Hemichordata;
- Kamptozoa;
- Kinorhyncha;
- Loricifera;
- Merostomata; also know known as horseshoe crabs;
- Mollusca, including shellfish, squid, octopus, whelks, Nautilus, cuttlefish, nudibranchs, scallops, sea snails, Aplacophora, Caudofoveata, Monoplacophora, Polyplacophora, and Scaphopoda;
- Myzostomida;
- Nemertinea (ribbon worms);
- Orthonectida;
- Phoronida;
- Placozoa;
- Porifera (sponges);
- Priapulida;
- Pycnogonida (sea spiders);
- Sipunculida;
- Tunicata, also known as sea squirts;
- Some flatworms of the classes Turbellaria and Monogenea;
- Xenoturbella;
- Xiphosura.
I notice that this was originally posted in "aquatic mammals". All mammals are vertebrates so none of the aquatic mammals would lack a backbone.
1 answer
The flatworms, or Platyhelminthes or Plathelminthes are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates, (having no body cavity), and no specialized circulatory and respiratory organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both the ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food cannot be processed continuously.
In traditional zoology texts, Platyhelminthes are divided into Turbellaria, which are mostly nonparasitic animals such as planarians, and three entirely parasitic groups: Cestoda, Trematoda and Monogenea; however, since the turbellarians have since been proven not to be monophyletic, this classification is now deprecated. Free-living flatworms are mostly predators, and live in water or in shaded, humid terrestrial environments such as leaf litter. Cestodes (tapeworms) and trematodes (flukes) have complex life-cycles, with mature stages that live as parasites in the digestive systems of fish or land vertebrates, and intermediate stages that infest secondary hosts. The eggs of trematodes are excreted from their main hosts, whereas adult cestodes generate vast numbers of hermaphroditic, segment-like proglottids which detach when mature, are excreted, and then release eggs. Unlike the other parasitic groups, the monogeneans are external parasites infesting aquatic animals, and their larvae metamorphose into the adult form after attaching to a suitable host.
United Nations Farms
2 answers
Flatworms are classified into three main classes: Turbellaria (free-living flatworms, such as planarians), Trematoda (flukes, which are parasitic flatworms), and Cestoda (tapeworms, also parasitic). Each class has distinct characteristics and lifestyles.
8 answers
