"The effectiveness of memory retrieval is directly related to the similarity of cues present when the memory was encoded to the cues present when the memory is retrieved." What concept does this statement describe?

Research indicates that ______ factors contribute to gender differences in aggressive behavior

a. neither biological nor social c. social, but not biological, b. biological, but not social, d. both social and biological

Emotions that are shared by people throughout the world, regardless of culture are______ emotions

a. endemic c. primary b. dominant d. common