2. What are those people called who sort out baby chickens by their gender?
(a) Chickeners.
(b) Sorters.
(c) They do not have a name.
(d) Chicken sexers.

3. At what age does Mike May regain his vision?
(a) 23.
(b) 55.
(c) 46.
(d) 32.

4. What tells us that we experience the world as it actually exists?
(a) Our senses.
(b) Our previous experiences.
(c) Our knowledge.
(d) Our intuition.

5. How do sorters learn to do their job?
(a) By watching experts sort.
(b) By studying videos of how to sort.
(c) By an expert sorter correcting a novice.
(d) By reading a how-to book.

6. What is one of the types of cells in the brain?
(a) Hepatic.
(b) Neurons.
(c) Erythrocytes.
(d) Nephrons.

7. How does Alberts convince one African that the native's tongue is still intact?
(a) Having the man hold his tongue and try to talk.
(b) Having the man sing.
(c) Using a mirror.
(d) Pulling on the tongue in question.

8. Why did the subjects say about why they chose the pictures of the women that they did?
(a) Only two mentioned that they thought women's eyes were sexier dilated.
(b) All the men mentioned the dilated eyes.
(c) The men were not asked why they chose the pictures.
(d) They had various reasons but none mentioned dilated eyes.

9. What seems natural to most people?
(a) Believing what we see is real.
(b) Seeing.
(c) Thinking.
(d) Processing physical data.

10. What does Eagleman say about the ways to measure how our unconscious minds affect our conscious thinking?
(a) There are ways of measuring without even knowing one is doing so.
(b) Eagleman says he will not go into that idea.
(c) It is impossible to measure such a thing.
(d) It is a hit and miss sort of thing.

11. What is difficult to do when it comes to sorting young chickens?
(a) Keeping the chickens grouped.
(b) Keeping the mother from pecking you.
(c) Catching a chicken if it gets loose.
(d) Determining sex.

12. In what number range does the author say the brain cells count?
(a) Trillions of trillions.
(b) Hundreds of thousands.
(c) Hundreds of billions.
(d) Hundreds of trillions.

13. What have we humans thrown ourselves into deciphering?
(a) Our emotional world.
(b) Our own programming language.
(c) Our means of connecting the brain to the heart.
(d) The language of individual, specialized cells.

14. What does an experiment that has people associate words such as "like" or "dislike" measure?
(a) Prejudicial feelings about different reaces.
(b) Preferences for certain cars.
(c) Preferences for certain flavors of ice cream
(d) Prejudicial feelings about people from certain countries.

15. What is the most important part of seeing?
(a) How one uses the information gained by sight.
(b) What the unconscious brain does with the information.
(c) How seeing stimulates the brain to be more productive.
(d) How seeing enables social interaction.