A. dilates
B. constricts
C. thickens
D. remains the same
A. auditory
B. kinesthetic
C. olfactory
D. vestibular
A. accommodation
B. object prominence
C. conservation
D. assimilation
A. effectors
B. receptors
C. afferent nerves
D. efferent verves
A. there is one independent variable having three levels
B. there are three independent variables having one level each
C. there is one independent variable and three dependent variables
D. there is one independent variable having four levels
A. cornea
B. lens
C. retina
D. pupil
A. perceptual set
B. selective attention
C. figure-ground perception
D. interposition