The concept of _______ proposes that externally uncontrollable environments and presumably internally uncontrollable environments are inescapable stimuli that can lead to sadness or low mood and major depression.

John accidentally knocked over Casey's block tower, so Casey hit him. Casey was displaying ______ aggression

Fill in the blank with correct word

"Organisms with features best adapted to their environments are more likely to survive and reproduce." To whom might this statement be attributed?

a. Charles Darwin b. Robert Costa c. E.L. Thorndike d. Sigmund Freud