Which statement describes heterogeneous mixtures? they are made up of two or more pure substances that are not chemically bonded together. they appear uniform, like a pure substance. they have fixed ratios between their components. they are made up of two or more pure substances that can be separated only by chemical processes.

A homogeneous mixture is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture. The composition of the mixture is the same throughout. There is only one phase of matter observed in a homogeneous mixture.

They are made up of two or more pure substances that are not chemically bonded together

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.