Final answer:
The NIH 1C is likely a typo or irrelevant to the science concepts demonstrated, which include demonstrating the anatomical position, correctly filling a test tube for an experiment, and understanding positions within a coordinate system.
Step-by-step explanation:
Demonstrating the Anatomical Position
To demonstrate the anatomical position, you must stand upright with your arms at your sides and your palms facing forward. This standardized position is the reference from which all body movements and positions are described in anatomy and medical contexts. This helps in ensuring a common frame of reference for anatomical studies and discussions.
Preparing a Solution in a Test Tube
For procedures involving a test tube, it's typical to fill the test tube to about one third full. This general guideline helps to prevent spills or boiling over when the test tube is heated or mixed. Remember to follow all safety protocols when handling chemicals in test tubes.
Defining Position in a Coordinate System
When defining your position within a coordinate system, consider a line where each person stands and uses a different group member as the origin. Decide on the positive direction along the line, and each person can then articulate their position as a positive or negative value relative to the chosen origin. This exercise is key in understanding the basics of coordinate systems which are essential in fields such as physics and mathematics.