Tamiflu must be started within hours of the onset of influenza symptoms

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research. b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research. c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data. d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

Why do we perceive objects as retaining their brightness under different lighting levels?