Cone spectral sensitivity is measured by having the observer ...

[jeatrice]

Cone spectral sensitivity is measured by having the observer _____.
 
  A) look up and blink
  B) look straight forward without blinking
  C) look directly into a light
  D) look to the side of a flashing light

Question 2

Rushton demonstrated that the physiological mechanism behind dark adaptation is _____.
 
  A) visual pigment regeneration
  B) the enzyme cascade
  C) modular organization
  D) photon remission

[Edwyer]

Answer to Question 1

C

Answer to Question 2

A

[jeatrice]

Thanks for the timely response, appreciate it

[peter]

TYSM