Are plankton floating communities of helminths?

No, plankton are not floating communities of helminths. Plankton primarily consist of small microorganisms, including phytoplankton (plant-like organisms) and zooplankton (animal-like organisms), which drift in aquatic environments. Helminths, on the other hand, are parasitic worms that typically live within hosts rather than floating freely in the water. While some larval stages of helminths may be found in aquatic environments, they do not constitute planktonic communities.