nothing
The positive interaction is mutualism The negative interactions are parasitism and competition The neutral interactions are commensalism, amensalism, and neutralism
a symbiosis in which both organisms benefit (any +/+ interaction)
The three forms of symbiosis are mutualism, commensalism, and parasitism. Mutualism describes the interaction of two organisms in a way that is beneficial to both of them. Commensalism describes the interaction of two organisms in a way that benefits one and neither harms nor helps the other. Parasitism describes the interaction of two organisms in a way that benefits one and harms the other. So, the difference from predation is clear in regards to mutualism and commensalism. Predation differs from parasitism in that predation involves a larger creature claiming the life of another for its benefit, whereas parasitism typically involves smaller creatures and may or may not require the victim to die.
An example of commensalism in the grassland is when a bird builds its nest in a tree, using materials such as twigs and leaves, without harming the tree. The bird benefits by having a safe place to raise its young, while the tree is unaffected by the bird's presence.
Mutualism, Commensalism, and Parasitism.
commensalism
Commensalism
Observations of commensalism of plants may simply be the result of difficulties in identifying effects of the interaction on the "0" species (i.e. the species assumed to be unaffected). As in neutralism, one can not assert positively that there is no competition or benefit to either plant species.
commensalism
commensalism
This is known as commensalism, where one species benefits while the other is neither harmed nor helped. An example of this is the relationship between barnacles and whales, where barnacles attach to the skin of whales to gain a habitat and feeding ground, while the whales are not significantly affected.
nothing
Plants
The relationship between barnacles that attach themselves to a whale's skin without harming the whale is an example of commensalism.
A bird living on the top of a hippo, or a bird living in a cactus is an example of commensalism...:D
ferns or orchids