Select your answer:
Topics:
Protein and Amino Acid Metabolism Energy, Hydrology, Microbiology Viruses and Prions Somatotypes Head and Neck Anatomy The Chemistry of Microbiology Health and Medicine Male Reproductive System Food and Health & Bones and Muscles Breathing ...Respiration Neurological Disorders Anxiety Disorders Transport System in Man Cell Theory and Microbiology ChemistryOther quiz:
Brain/Neuron Anatomy › ViewCover the axon; insulation to help keep electrical signals inside the cell
A. Myelin Sheath
B. Dendrite
C. Synapse
Body Systems › View
Which one describes the smallest functional unit of an organism?
A. body system
B. organ
C. cell
D. tissue