A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as

A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as **continuous variation**. Continuous variation refers to the variation in a trait that can take on a range of values between two extremes. For example, height in humans is a trait that shows continuous variation, with individuals ranging from very short to very tall, and many intermediate heights in between. This is in contrast to discontinuous variation, which refers to traits that fall into distinct categories, such as blood type or the ability to roll one's tongue.