Ramona has lost her interest in gardening, which brought her joy in the past. She's lost her appetite and life seems hopeless. Which disorder would Ramona be most likely to have?

What did Charles Darwin believe about the origin of emotions?

a) They are learned through experience. b) They do not merit scientific consideration. c) They are a product of evolution. d) They are remnants of our earliest ancestors and, thus, have little relevance today.

The ________ __________ is the minimum amount of stimulation needed to produce a sensation

a. absolute threshold c. Weber's threshold b. difference threshold d. darkness threshold