This question can technically not be answered. an organism can not be parasitism commensalism or mutualism because these are all interactions between two organisms, not an organism by itself. So, it really depends on what it is interacting with and how. Parasitism is a relationship between two organisms where one is negatively affected and the other is benefited. Ticks, tapeworms and lice on/in dogs or humans are among these. Commensalism is where one species is benefited and one is not affected at all. One example is woodpeckers and some species of owls. The owls will make homes and reside in the holes in trees result of some species of woodpeckers. Mutualism is a relationship where both species mutually benefit. One instance is the honey badger and honey guide. The honey guide is a bird and the honey badger is, well, a badger and both of these organisms feed on honey. The honey guide will find a hive then a badger and lead the badger to the hive. The honey badger will then break open the hive and feed on the honey. the honey badger has thick skin and will not be harmed by bee stings. The honey guide will then feed on the leftovers.
Dolphins would be hosts to parasites.
Parasitism .
Fish can get parasites that harm them. Dogs can also get harmed by heartworms those are parasites. Humans can also be harmed by parasites. there are many parasites that can affect people.
if the host dies the nutrients die with it so parasites will die as well, until they find a new host
You worded your question pretty confusingly.Parasites live off the host that they are infecting, so technically the parasites are begins supported by the host itself. The role of the parasites are to infect a suitable host and start eating their energy up. That could result in the death of the host, when the population of the parasites grow.partnershostsholderscarriers
Parasites get benefit but host is harmed .Parasites are highly modified .
Parasites identify a specific host cell that they can partner with.
By being parasites and doing what they do best, living off its host
they are snidy
Are parasites that live on the surface of the host.
Parasites
Are parasites that live on the surface of the host.
they are either eaten or transfered by blood