Perceiving incomplete objects as complete define:

By the end of the third week of prenatal development, neurons are beginning to form a

primitive structure that will later become the brain and the spinal cord. This is called the a. primitive brain. b. hindbrain. c. neural tube. d. proximodistal brain.

According to your textbook, which of the following is most stressful to people and animals?

a. constant stressors b. predictable stressors c. uncontrollable stressors d. physical stressors