If there is a genetic mutation in an individual strong enough to modify there chance of survival it opens the door for natural selection. If the effect is positive they are more likely to outlive their original species. If it is negative it decreases their chance of outliving their original species. Also known as survival of the fittest it favors positive trays by "eliminating" negative ones.
It cause a change in behavior and adaptability of a inhabitant. A jaguar in the forest who is able to eat prey which are hardly eaten by other jaguars, is more likely to thrive and reproduce jaguars which will be able to bite through the shell of a turtle
Evolution or Natural selection
Only natural selection could be the answer here as natural selection is the main driver of adaptive change leading to evolutionary change and speciation in large populations.
Natural selection is only the result of changing environments, mutation and the variation resulting therein. Natural selection is the process of adaptive change and the main mechanism of evolution that leads to speciation. Natural selection is a process as mutation and variation are grist to the mill of natural selection.
Natural selection explains adaptive change in the immediate environment.
- natural selection - sexual selection - genetic drift - immigration/emagration
Adaptation does not allow for natural selection: natural selection causes adaptation.
Environment IS natural selection, so a change in environment is a change in selection pressure.
Only natural selection could be the answer here as natural selection is the main driver of adaptive change leading to evolutionary change and speciation in large populations.
Genetic change is necessary for natural selection to take place
Natural selection
Natural selection, Evolution, Artificial selection, disasters
Natural selection usually causes a species to change gradually
Natural selection is only the result of changing environments, mutation and the variation resulting therein. Natural selection is the process of adaptive change and the main mechanism of evolution that leads to speciation. Natural selection is a process as mutation and variation are grist to the mill of natural selection.
Yes. Without natural selection there might probably still be change, but it would produce a fine gradient of diverging morphologies in every 'direction' of change. Natural selection limits the 'directions' of change, thereby producing distinct morphologies and thus distinct species.
If a population exists in an environment that changes very little, then natural selection may not provide any pressure to change. However, even under these conditions genetic driftoccurs, introducing random change within the parameters set by natural selection.
Natural selection
Natural selection, which is the mechanism for evolution.
A very important mechanism of evolutionary change besides natural selection is geneticc drift.