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To prevent swollen thyroid glands many nations add iodine to
Obsessive-compulsive Disorder
A mental disorder characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions).
Thalamus
A part of the brain located in the center of the brain, acting as a relay station for sensory and motor signals to the cerebral cortex.
Amygdala
A part of the brain involved in processing emotions, including fear, anxiety, and aggression.
Panic Attack
A sudden episode of intense fear that triggers severe physical reactions when there is no real danger or apparent cause.
Q1: A condition in which bones become less
Q18: In the section "Investigating Life: Sniffing Out
Q21: The ozone layer absorbs much of the
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Q35: Muscle tissue that is controlled involuntarily and
Q39: Many parasites are too large to be
Q40: Habitat destruction and the greenhouse effect are
Q50: The cellular components of blood that destroy
Q101: The _ and _ of a plant's
Q125: A nerve impulse travels about _ times