A homogeneous mixture of two or more substances is called a solution.
Mechanical Weathering occurred. Is not caused by any chemical substance. Differs from Chemical Weathering which changes the composition of the rock itself
Species is a type or kind of thing while ecomorph is a local variety of a species whose appearance is determined by it's ecological environment
Answer:
Many scientists use dichotomous keys to identify plants, animals, and other organisms. They may also use dichotomous keys to identify species, or to determine whether a particular organism has been identified and described before. However, dichotomous keys are not used only to identify organisms.
