As nature changes (think of weather, season, natural disaster and the way species eat each other) certain element of nature will go extinct causing the species that fail to reduce their dependency on that extinct element perish as well.
Put it on a modern perspective...
How bright and or a hard working students will get all the priviledges and leave the underachiever to find their own way also a kind of "natural selection". Students that fail to change their behaviour to work harder or smarter will have a more challenging life.
Natural selection is the mechanism primarily responsible for the development of today's biodiversity.
Natural selection
have chromosomes.
Alfred Russel Wallace.
Adaptive change and speciation.
No, natural selection is the mechanism that drivesevolution.
Natural Selection
The mechanism is natural selection, of course.
Natural selection is the mechanism primarily responsible for the development of today's biodiversity.
Evolution.
Evolution
Natural selection
Natural selection is a mechanism of adaptive change in evolution.
Natural selection.
have chromosomes.
Natural Selection.
The mechanism and main driver of adaptive change in evolution is natural selection.