Final answer:
Mixtures that are uniform throughout are called homogeneous mixtures, which are also known as solutions, thus the correct answer is A. homogeneous.
Step-by-step explanation:
Mixtures can be uniform (called homogeneous mixtures) and are known as solutions. A homogeneous mixture is a combination of substances with a composition that is uniform throughout. For example, when salt is dissolved in water, it forms a uniform composition that makes it difficult to distinguish the separate components, even with a powerful microscope. Another term for a homogeneous mixture is a solution. Therefore, the correct answer to the question is A. homogeneous.