Viruses. http://lbhsbio.files.wordpress.com/2008/01/bacteria-and-viruses-combo-2.ppt. STRUCTURE. Nonliving Composed of a nucleic acid and a protein coat Cause many diseases Virology – Study of Viruses Comparison of Viruses and Cells below. Structure of a Virus. Nucleic acid (DNA or RNA).
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Nucleic acid (DNA or RNA)
Protein Coat ( capsid)
2 essential features
After polio infections, the killer T-cell have destroyed the motor neurons that are producing the virus. The result is a loss of muscle control including the diaphragm. The iron lung changes the pressure to pump air in and out of the lungs.