'haemocoel' - meaning blood space
Sponges and jellyfish don't. Flatworms have blood for the same reason you do, to provide transport of materials to and from cells.
facts about flatworms
Yes flatworms are invertebrates
it eats outWhat does a liver fluke eat?These flatworms are parasites and feed on the blood of their host.
Flatworms are in the Platyhelminthesphylum.
The scientific name for flatworms is Platyhelminthes.
What are some examples of Flatworms?
Yes, Cats can be a host for flatworms.
Flatworms are in the Platyhelminthes Phylum
No. Ants are arthropods while flatworms are platyhelminthes.
Flatworms aren't round but are flat and soft as a jelly.