The short answer is that one is always going to be slightly better at that exact niche than the other, and so will drive the competitor to local extinction. In reality, two species in nearly the same niche will often co-occur, but there will be more resources in a very similar niche that will allow for one species to exploit those other resources. Evolution can happen very quickly in these high competition areas (in a matter of a few years, it has been directly measured).
If 2 mouse species tried to occupy the same niche they would fight. The mice fight to right to occupy the niche. The winner of the fight gets the niche.
True
Not for long. Competition for resources will drive one species out.
According to the competitive exclusion principle, two species cannot continue to occupy the same ecological niche in a community because one will outcompete the other leading to the elimination of the less adapted species.
Only one will survive
If two animals occupied the same niche, they would have to compete for the resource that is gained from that specific niche
In an ecosystem, a niche is a very specific role that a species can play in that system. When two species attempt to fulfill this exact same role, their prey becomes much more scarce, and one will eventually force the other out.
Not indefinitely. The key to occupying the same niche is resource availability. When two different organisms use the same resource in a simliar way, they can coexist without any problem if population density is low. When more individuals are present and occupy the same niche, competition takes over and whichever organism is the most efficient at obtaining the common resource will outcompete others.
When two species occupy the same niche, it is referred to as niche overlap. This can lead to competition for resources, as both species vie for the same food, habitat, or other necessities for survival. In some cases, this competition can result in one species being displaced or driven to extinction, a phenomenon known as competitive exclusion. Alternatively, the species may adapt to minimize competition, leading to resource partitioning.
There is massive competition for resources resulting in one of the two species being driven away or made extinct.
Competition occurs when two different species try to occupy the same niche. This can lead to shifts in population sizes or behaviors as individuals strive to access limited resources. Over time, competition can result in adaptation or niche differentiation to reduce direct competition between species.
In theory, multiple organisms can occupy the same niche through resource partitioning, where each species uses different resources or occupies a different part of the niche. However, intense competition may limit the number of species that can coexist in a specific niche in reality.