Tapeworms. Flukes and Planaria are also other examples of flat worms.
The organs of excretion in flatworms are contractile vacuoles. Flatworms are invertebrates that do not have any specialized excretion organs.
Some examples of platyhelminthes, also known as flatworms, include planarians, flukes, and tapeworms. Planarians are free-living flatworms found in freshwater environments. Flukes are parasites that can infect various animals, including humans. Tapeworms are also parasitic and can be found in the intestines of vertebrates.
The planaria class is Turbellaria
turbelliona (its either ona or ana) tapeworm fluke planaria
planeriacomes under kingdom animalea
sp refers to a planaria where the actual species is undetermined...or sometimes because several species of planaria have similar appearance or behavior and have been used in a study.
Usually a planaria regeneration experiment involves cutting the planaria into different parts. The head can be separated from the tail or the planaria can be cut lengthwise, etc. After cutting the planaria, it will be observed for few days noting how the organism regenerate its lost body parts. Read more on planaria regeneration on t he link provided below.
Planaria prefer dark environments
No; they lack a mouth and anus. Tapeworms depend on the diffusion of already digested nutrients through their body surfaces. The scolex that might appear to be a mouth is actually not an opening at all: it contains hooks to allow the worm to attach itself to the host's intestines. An organism which is considered to possess a complete gut will have a mouth, stomach, and anus.
NaCl, also known as salt, can affect planaria by disrupting their osmoregulation. Planaria have a delicate balance of salt concentrations in their cells to maintain proper water and ion balance. Excess salt can cause dehydration, while insufficient salt can lead to swelling and bursting of cells in planaria.
The planaria scientific name is called Planariidae. It is not a species so the binomial name could not be determined. Planaria are non-parasitic flatworms.