Although domesticated dogs have a wide variety of breeds, they were found to have descended from gray wolves. All of the following are changes that occurred over time to result in modern domestic dogs EXCEPT

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.