It's called 'survival of the fittest.'
or more scientifically called Natural Selection
Natural selection
natural selection.
Organisms have adapted to the environment through evolution process, over the millions of years. So there structures are closely related to the need of environment.
Natural selectionsurvival of the fittest or natural selection.
Natural selectionsurvival of the fittest or natural selection.
Natural selectionsurvival of the fittest or natural selection.
Natural selectionsurvival of the fittest or natural selection.
natural selection
Natural selection
Adaptation.
Natural selectionsurvival of the fittest or natural selection.
Natural Selection
Life does not proactively adapt to anything. Life in the desert becomes adapted to that environment because the living organisms that can not survive in that environment die off.The organisms with natural variations that enable them to survive in the desert do so and breed, those variations become established in the population and so the process continues, generation after generation until there are organisms in the desert that do very well in that environment.