Humans
one species wins and the other isn't harmed or helped one species wins and the other isn't harmed or helped
A mutualistic relationship is one in which neither species is harmed. This type of relationship benefits both species involved.
Mutualism: Both species benefit from the relationship. Commensalism: One species benefits while the other is neither helped nor harmed. Parasitism: One species benefits while the other is harmed. Competition: Both species are harmed as they compete for resources. Amensalism: One species is harmed while the other is unaffected. Neutralism: Both species are unaffected by each other.
commensalism
Parasitism.
One species benefits and other is harmed
salmon can be harmed by pollution, reduction of species, by damming up the rivers they live in, or just plain fishing
Mutualism: Both species involved benefit from the relationship. Commensalism: One species benefits while the other is not significantly harmed or helped. Parasitism: One species benefits at the expense of the other, which is harmed.
A relationship where one organism is benefited and the other is harmed is calledPARASITISM
symbiotic
A relationship where one organism is benefited and the other is harmed is calledPARASITISM
In commensalism, the species that benefits may evolve to maximize the benefits they receive. However, the species that is neither helped nor harmed may not necessarily evolve in direct response to the other species, as there is no selection pressure acting on them. Their evolution would depend more on other factors affecting their fitness in their environment.