Learning is defined as

Shayann uses the Internet quite a bit. According to the social compensation hypothesis, this is because he

A) is lonely and has few friends to begin with. B) enjoys learning about foreign cultures and peoples. C) wants to develop his hand-eye coordination skills. D) wants to communicate with his large circle of friends.

The four hollow and interconnected spaces within the brain form the

a. choroid plexi. b. supra-arachnoid spaces. c. ventricles. d. meninges. e. spinal aqueducts.