jessica, zach, and their dog max have been together for 12years. their friends joke that they all look alike. jessica and zach are both very attractive with dark hair and dark eyes. this similarity is known as

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that

Can an organism fill more than one trophic level?