When humans eat food, the food begins digestion in the mouth. Then it travels to the stomach and finally ends up in the intestines, where nutrients are able to diffuse into the bloodstream. The circulatory system then delivers the nutrients to all the different parts of the body.

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