Variation refers to the genetic differences that exist among individuals within a population.
The term "Vida Chart" in this context is derived from the Spanish word Vida , meaning "Life." In many bilingual or standard biology classrooms, this term refers to a or a Cladogram . These charts are diagrams that depict the evolutionary relationships among various biological species based upon similarities and differences in their physical or genetic characteristics.
No two individuals (outside of identical twins) are exactly alike. They differ in traits like size, color, speed, or resistance to disease.