What process occurs when molecules move from a crowded area to a less crowded area ? Show/tell me the EVIDENCE

In which process is oxygen absorbed by an organism asap apex

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?