the difference in the physical traits of an individual from those of other individuals in the group to which it belongs
variation
adaptation
a feature that allows an organism to better survive in its environment
variation
adaptation
A tortoise population lives in an area with high grass. These tortoises have longer necks than tortoises that live in other areas. The long necks are an example of this
variation
adaptation
One bird in a population has a slightly thicker beak than its relatives. This thicker beak is an example of what in the population.
