___ is the process by which individuals with advantageous ___ are more likely to survive and reproduce in their ___. This process leads to the gradual ___ of populations over time, as favorable traits become more common. The variations in traits within a population are due to ___ and environmental factors. Individuals with traits that increase their ___ are more likely to pass on their genes to the next generation, resulting in the accumulation of favorable traits within the population. This process ultimately leads to the ___ of populations to their specific environments, as organisms with traits that are well-suited to their surroundings have a higher chance of ___ and passing on their genes.

Answers choices to add:
1. Natural selection
2. Environment
3. Evolution
4. Genetic Variation
5. Fitness
6. Adaptation
7. Survival
8. Traits

Natural selection is the process by which individuals with advantageous traits are more likely to survive and reproduce in their environment. This process leads to the gradual evolution of populations over time, as favorable traits become more common. The variations in traits within a population are due to genetic variation and environmental factors. Individuals with traits that increase their fitness are more likely to pass on their genes to the next generation, resulting in the accumulation of favorable traits within the population. This process ultimately leads to the adaptation of populations to their specific environments, as organisms with traits that are well-suited to their surroundings have a higher chance of survival and passing on their genes.