The muscle fibers of the iris can increase or decrease the amount of light entering the eye by expanding or contracting the ______________?

A. generativity
B. intimacy
C. isolation
D. integrity

A. episodic memory
B. metamemory
C. semantic memory
D. procedural memory

A. Ego blocking
B. Superego blocking
C. Primary ego
D. All of the above
E. None of these

A. a long, thick myelinated fiber
B. a long, thin myelinated fiber
C. a short, thick myelinated fiber
D. a short, thin myelinated fiber

A. a characteristic of sound
B. techniques used to improve memory
C. the scientific term for a memory location in the brain
D. the sound produces when two notes an octave apart are played simultaneously

A. serial learning
B. repetition
C. pairing
D. rehearsal