Which inorganic substances help build bones and teeth?
a. antioxidants
b. vitamins
c. fatty acids
d. free radicals
e. minerals
Question 2
Which infectious agent is linked to cervical cancer?
a. Helicobacter pylori
b. human immunodeficiency virus
c. human papillomavirus
d. Streptococcus sanguis
e. Chlamydia pneumoniae