Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

This statement is describing the process of natural selection, a key mechanism of evolution, first proposed by Charles Darwin. Here's a step-by-step breakdown:

1. Variation: Within a given species, there exists a natural variation in traits (like speed, size, or color). These traits are determined by genes.

2. Differential Survival: Some of these traits can give certain individuals an advantage in terms of survival and reproduction. For example, a rabbit that runs faster may be more likely to escape predators and therefore more likely to survive and reproduce.

3. Heredity: The advantageous traits are heritable, meaning they are passed on from parents to offspring. So, the fast-running rabbit's offspring will also likely be fast runners.

4. Over time, these advantageous traits become more common within the population as the organisms with these traits have more offspring. This leads to a change in the genetic makeup of the population, and over long periods, this can lead to the development of new species.

5. Divergence: As different traits become advantageous in different environments, populations of the same species can diverge, or evolve in different directions, leading to the creation of new species. This is known as speciation.

So, the statement is saying that organisms that are better adapted to their environment (through advantageous traits) are more likely to survive and reproduce, passing on these advantageous traits to their offspring. Over time, this leads to changes in species and the creation of new species.