The surface and atmosphere of Earth has been changing constantly throughout its history as a result, organisms continue to evolve to adapt to those changes.
The surface and atmosphere of Earth has been changing constantly throughout its history as a result, organisms continue to evolve to adapt to those changes only by evolutionary term.
Explanation:
Survival of the fittest - It refers to the 'survival of organisms' which are best able to 'obtain and utilize' the available resources that results in the 'evolution of organisms' which can adapt to these changes.
Survival alone is not sufficient for 'evolution of organisms, it's 'reproduction passing on of genes' that really counts.