Mild brain injuries a. usually produce no problems. b. ...

[swpotter12]

Mild brain injuries
 
  a. usually produce no problems.
  b. usually produce short-lived, major problems.
  c. are likely to occur in athletes.
  d. usually produce long-term, major problems, particularly in older people.

Question 2

The damage that might be caused to the brain by riding a violently fast roller coaster is similar to that seen with
 
  a. a closed-head injury.
  b. a penetrating head injury.
  c. vascular dementia.
  d. a series of circumscribed cerebral infarcts.

[shailee]

Answer to Question 1

c. are likely to occur in athletes.

Answer to Question 2

a. a closed-head injury.

[swpotter12]

Gracias!

[vickyvicksss]

Great answer, keep it coming