At about 7 weeks, a genetically male fetus turns on the SRY gene on the ________ chromosome, and gives instructions for formation of the testes

What dietary supplement ingredient has been tested for its ability to improve memory in Alzheimer's disease, but has produced only small and unreliable improvements in published research?

A. lobelia B. androstenedione C. Ginkgo biloba D. St. John's wort

A researcher asks an adult to memorize a list of words. Later, she shows the subject the words

imbedded in a larger word list. The subject must identify which word he has seen before. This paradigm is known as a: A) repetition-primary paradigm. B) conditioning paradigm. C) skill learning procedure. D) lexical decision making task.