Which of the following is NOT a known cause of mental disorders. a
Severe injury or trauma
b
Environment
c
Germ Transmission
d
Genetics

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

Which of the following is the definition of ventilation as it relates to the respiratory system?

Wanting to know the rules and the right person to ask for are characteristics of the safety reassurances required by preschoolers. infants. school-age children. toddlers.