Which of the following is known as the "stress hormone"?

Which of the following properties of sound would be the most similar to the color, or hue, of light?

a. pitch b. loudness c. timbre purity d. hue e. "it signals the hypothalamus to commence with eating behaviors."

___________ developed the doctrine of specific nerve energies

a. Pierre Flourens b. Johannes Müller c. Paul Broca d. Luigi Galvani