Which test procedure is recommended if either parent carries Tay-Sachs, spina bifida, sickle-cell, Down syndrome, muscular dystrophy, or Rh disease?
A. amniocentesis
B. embryoscopy
C. chorionic villus sampling (CVS)
D. ultrasound
Answer: A
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Gifted children may be overlooked due to __________.
A. their daydreaming behavior and vivid imaginations B. behavior that is interpreted as lazy or incompetent C. their social awkwardness D. their shy and withdrawn personalities
The white fatty material that insulates the neuron is called the
a. cortex. c. node of Ranvier. b. myelin sheath. d. soma.
Research on infantile amnesia suggests that adults typically cannot remember events that happened during the first few years of life because __________
A) early memories are stored in an explicit memory system that makes recall difficult B) young children rely too heavily on verbal memory techniques C) long-term memory does not emerge until around age 7 D) they cannot translate early preverbal memories into language
Neurons send messages to one another by releasing chemicals called
A) synapses. B) neurotransmitters. C) glial cells. D) myelins.