Critical Thinking Activities - Chapter 10 Answers

  1. What you are consciously aware of tasting is actually a combination of sensations from the mouth as well as from the nose (246).

  2. The stapedius muscle has contracted to dampen the sound (255)

  3. Red, since the observer will need to keep his/her eyes dark adapted (272). Rods are not sensitive to red light and it is the rods the periscope operator will be using at night.

  4. A star-gazer will be using rods which are more frequent peripherally (272).

  5. Stars are so far away that their light is very weak by the time it reaches the earth. We can only see the presence (i.e. white) or absence (black) of light under low light conditions (272).

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