Variation is useful for the survival of species over time because if a population faces drastic changes in its niche, individuals with variations may have a better chance of surviving and adapting to the altered conditions, ensuring the species’ continuity.
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Variation is considered useful for the survival of species over time because it provides the raw material for natural selection and adaptation. The paragraph suggests that during the process of reproduction, variations can occur in the DNA copying of organisms. These variations may lead to differences in the genetic makeup of individuals within a population.
In the face of changing environmental conditions, such as alterations in temperature, water levels, or other ecological factors, individuals with certain variations may be better suited to survive and reproduce. The genetic diversity resulting from these variations allows a population to adapt to different challenges over time.
For example, if a niche within an ecosystem changes, individuals with specific variations that confer an advantage in the new conditions are more likely to thrive and pass on their genes to the next generation. This adaptability, driven by variation, is a fundamental aspect of evolution and the long-term survival of species in diverse and dynamic environments.