Why are Zebra mussols located primarily in areas in the eastern United States rather than in the Western United States?

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 limbs. so, it can be concluded that .

Match with o for organic and i for inorganic for each compound

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: