Some interactions lead to
, which occurs when organisms in an environment rely on each other for resources.
An example of this concept is
, which occurs when two species require the same limited resource, such as food, water, shelter, or sunlight.
Another example is
, which occurs when one species benefits from the interaction and the other species is neither harmed nor helped.
This is called commensalism, and it can be seen in various examples such as remoras hitchhiking on sharks to feed on leftover prey, or birds nesting in trees without causing any harm or benefit to the tree itself.
Some interactions lead to symbiosis, which occurs when organisms in an environment rely on each other for resources.
An example of this concept is competition, which occurs when two species require the same limited resource, such as food, water, shelter, or sunlight.
Another example is commensalism, which occurs when one species benefits from the interaction and the other species is neither harmed nor helped.