The first organ system to begin functioning in the embryo is the ________ system

Older children write better than younger children because

a. they have less knowledge about the world. b. they have mastered the mechanical aspects of writing. c. they organize their writing as they retrieve it, often without an obvious structure. d. they don't revise it.

Diane is sitting cross-legged and concentrating only on her breathing. She is practicing

a. concentrative meditation. b. mindfulness meditation. c. imagery rehearsal. d. lucid dreaming.