Topics: Teeth and Microbes Quiz
The outer layer of the crown is made of a substance called __________.
A. dentine
B. water
C. flour
D. enamel
Select your answer:

Topics:
Reproduction Common Diseases in Human Beings Neurons Ecology Circulatory, Artery, Vein - basics Cells and Organ Systems Understanding Psychology Nervous System Vital Signs Enzymes and Their Functions Parts of the Skin Physical Pharmacy 5 Major Food Groups Circulatory & Respiratory System Cosmetology Anatomy Anatomy and Physiology Skeletal SystemOther quiz:
Endocrine System › ViewThis is the name of the simple sugar that is found in your blood?
A. water
B. glucose
C. sodium
D. sugar
Vision (AP Psych) › View
Most color-deficient people will probably:
A. Lack functioning red-or-green-sensitive cones
B. See the world in only black and white
C. Also suffer from poor vision
D. Have above-average vision to compensate for the deficit