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DNA, RNA, Proteins Cell Division Ecology Philosophy Cell Theory and Microbiology Medical Terminology Prefixes Illness and Symptoms Cell Vocabulary Transport System Orthopedic Surgeon Health and Medicine Nutrients in Food Types of Doctors Mental Health Bonding and the Periodic TableOther quiz:
Circulatory and Nervous System › ViewWhat is the body organ that pumps blood to get more oxygen?
A. Bones
B. Brain
C. Heart
D. Lungs
Biochemistry › View
The smallest unit of a substance that retains all of its properties (smallest unit of matter)
A. atom
B. compound
C. molecule
D. cell