Author Question: Research has clearly shown that environmental factors have a causal, not correlational, relationship ... (Read 191 times)

cabate

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Research has clearly shown that environmental factors have a causal, not correlational, relationship with the development of ADHD.
 
  Indicate whether the statement is true or false

Question 2

Which type of headache results from constricting of the cranial arteries, followed by dilation of the cerebral blood vessels?
 
  a. migraine c. cluster
  b. tension d. intermittent



tkempin

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Answer to Question 1

F

Answer to Question 2

A



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