Differences in characteristics observed between individuals of the same species is known as

The term used to describe differences in characteristics observed between individuals of the same species is "variation". Variation can be caused by a number of factors, including genetic differences, environmental factors, and interactions between genes and the environment. Variation can be observed in many different traits or characteristics, such as height, weight, color, behavior, and more. Understanding and studying variation is important in fields such as genetics, ecology, and evolution, as it can help us to understand how and why populations change over time.