What analgesic compound is contained in willow bark?

____ systematically destroyed parts of the brain using extirpation.?

a. ?Broca b. ?Gall c. ?Spurzheim d. ?Flourens e. ?Fowler

One function of a theory is to provide direction. This function is most related to the ______ component of the scientific process.

a. creating a research study b. hypothesis testing c. theory development d. observation