The color of the iris is primarily a result of a. its blood ...

[yoooooman]

The color of the iris is primarily a result of
 
  a. its blood supply.
 b. it amount of melanin.
 c. the refraction of light by the anterior chamber.
 d. the reflection of light from the retina.

Question 2

Single-cell recordings during movement indicate that
 
  a. movements are encoded by single neurons.
 b. movements are encoded by populations of neurons.
 c. it is not possible to identify correlations between neural activity and movements.
 d. neural activity during movement appears surprisingly random.

[missalyssa26]

Answer to Question 1

b

Answer to Question 2

b