The Moro (startle) reflex causes a baby to

Answer: Spread arms outward and then bring them back when startled Disappears around 4-6 months as voluntary movement develops.

Adolescence in psychology typically begins with

Answer: Puberty (sexual maturity) Begins with biological changes; ends with assumption of adult social roles.

Fetal alcohol syndrome (FAS) results from

Answer: Maternal alcohol use during pregnancy Causes physical, cognitive, and behavioral abnormalities.

AP Psychology · Topic 3.2

Physical Development Across the Lifespan Practice

Part of Development and Learning.

Practice questions

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Sample questions

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Sample 1difficulty 3/5
$The Moro (startle) reflex causes a baby to$
- A
  $Curl the toes inward when the bottom of the foot is stroked$
- B
  $Make stepping motions when the soles touch a flat surface$
- C
  $Spread arms outward and then bring them back when startled$
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- D
  $Turn the head toward a touch on the cheek and open the mouth$
Why
$Disappears around 4-6 months as voluntary movement develops.$
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Sample 2difficulty 3/5
$Adolescence in psychology typically begins with$
- A
  $Entry into formal schooling around age six$
- B
  $The legal age of majority at eighteen$
- C
  $Puberty (sexual maturity)$
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- D
  $Marriage or formation of a long-term partnership$
Why
$Begins with biological changes; ends with assumption of adult social roles.$
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Sample 3difficulty 3/5
$Fetal alcohol syndrome (FAS) results from$
- A
  $Oxygen deprivation at birth$
- B
  $Maternal alcohol use during pregnancy$
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- C
  $Inherited chromosomal abnormality$
- D
  $Maternal nicotine exposure$
Why
$Causes physical, cognitive, and behavioral abnormalities.$
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Sample 4difficulty 3/5
$Teratogens are$
- A
  $Agents (drugs, viruses, alcohol) that can harm prenatal development$
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- B
  $Inherited traits passed from parents to offspring at conception$
- C
  $Reflexes that disappear within the first year of life$
- D
  $Hormones produced naturally during normal pregnancy$
Why
$Examples: alcohol (FAS), thalidomide, rubella, smoking.$
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Sample 5difficulty 3/5
$The figure best illustrates which developmental principle?$
- A
  $Motor development reverses in toddlerhood$
- B
  $Milestones occur at exactly the same age for all children$
- C
  $All children walk before they sit$
- D
  $Motor development follows an orderly sequence with overlapping windows$
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Why
$Motor milestones emerge in a predictable sequence (sit, then walk, then run) but with normal variability in the age at which any individual child achieves each one—producing overlapping cumulative curves.$
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