What is the difference between a heterogeneous mixture and a homogeneous mixture? A. A heterogeneous mixture can only be a solid, and a homogeneous mixture can only be a liquid. B. You can’t see the parts in a heterogeneous mixture, but you can in a homogeneous mixture. C. You can see the parts in a heterogeneous mixture, but you can’t see them in a homogeneous mixture. D. A heterogeneous mixture is a physical combination, and a homogeneous mixture is a chemical combination.

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .