Final answer:
The black coloration from the knees and hocks down or at the tips of the ears is referred to as points.
Step-by-step explanation:
The black coloration from the knees and hocks down or at the tips of the ears is referred to as points. Points are a term used in animal coloration to describe areas of contrasting color on the extremities of the body. In the case of animals such as dogs and horses, the points typically refer to the areas on the legs below the knees/hocks and at the tips of the ears, where the color may be darker than the rest of the coat.