Brief answer only.
Phyllum Platyhelminthes are the flatworms. These have three layers of cells.
Phyllum Annelidia are the segmented worms. These have blood vessels, a developed nervous system, and a digestive system organized round a central tube.
hook worm and ascaris
trematodes flatworms flukes
turbelliona (its either ona or ana) tapeworm fluke planaria
Yes, Platyhelminths, commonly known as flatworms, possess protonephridia. These are simple excretory structures that function in osmoregulation and waste removal. Protonephridia consist of flame cells that create a current to help expel waste products and excess water from the body. This system is crucial for maintaining the internal environment of these organisms, especially in freshwater habitats.
trematodes are commonly called flukes just as cestodes are tapewoprms both belonging to the phylum platyhelminths (flatworms), and the kingdom animalia.
they are bilaterally symmetrical, their body has more than 2 cell layers and their body possesses 3 different sections; prosomium, trunk and a pygidium. thanks for reading and i hope this helps you.:)
Coelomates that develop with the blastopore becoming the mouth are protostomes. An example of a protostome would be the Caribbean reef squid.
The pair of them differ so much.Their opinions often differ.
they are differ by their color they are also differ in temperature
Differ.
How does what differ from mass?
Use it as a verb. Shelly differs from Mary