Select your answer:

Topics:
Human Digestive System Microbes and Infectious Disease Communicable Disease Epithelial Tissue Vaccines Deficiency Disease Musculoskeletal Injuries Nutrition in Humans and Animals Life Cycle - Bee Transportation and Excretion HFT Vitamins Neurology Properties of the Hair Bacterial Growth Parts of the SkinOther quiz:
Macromolecules & Enzymes › ViewIf you did not have an immediate source of energy, which macromolecule would your body use?
A. lipid
B. nucleic acid
C. protein
D. carbohydrate
Biochemistry › View
Which property is NOT shared by isotopes of the same element?
A. Number of protons
B. Atomic mass
C. Chemical behavior
D. Number of electrons