A. the gamma phenomenon
B. the principle of illusory circle
C. the autokinetic illusion
D. stroboscopic motion
A. reinforcement
B. punishment
C. discrimination
D. chaining
A. are identical twins
B. are fraternal twins
C. are monozygotic
D. have blue-eyed parents
A. vestibular system
B. na
C. round window
D. cochlea
A. accommodation
B. assimilation
C. formal operation
D. concrete operation
A. require the lowest energy expenditure
B. they individually select from various natural alternative
C. they learn from their parents
D. help them to survive and reproduce
A. non-parametic
B. introspection
C. field research
D. parametic statistics