* Genetic Variation: This is the fundamental driving force of evolution. It refers to the differences in the DNA sequences of individuals within a population. These differences can arise from:
* Mutations: Random changes in the DNA sequence.
* Recombination: The shuffling of genes during sexual reproduction.
* Natural Selection: This is the process where individuals with traits that are better suited to their environment are more likely to survive and reproduce, passing on their advantageous genes to their offspring.
* Adaptation: Over time, the accumulation of advantageous genetic variations leads to adaptations, which are traits that help organisms survive and thrive in their specific environments.
In summary:
* Genetic variation provides the raw material for evolution.
* Natural selection acts upon this variation, favoring traits that enhance survival and reproduction.
* This process leads to the gradual adaptation of organisms to their environments.
