Which of the following most accurately defines consciousness?

In experimental research, the variable that is systematically manipulated by the researcher is called the

a. positive variable b. extraneous variable c. dependent variable d. independent variable

Meningiomas typically arise from a. neurons

b. astrocytes and oligodendrocytes, or a combination of the two. c. Schwann and Amacrine cells. d. the membranes covering the brain.