Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 20, Viruses and Prokaryotes - 20.3 - Diseases Caused by Bacteria and Viruses - 20.3 Assessment - Page 592: 3b

Answer

Antibiotic resistance and genetic mutations causes drug resistance.

Work Step by Step

This is a key fact to remember. After all, while many people try to constantly get doctors to prescribe the antibiotics, over prescription can cause the antibiotics to evolve and hence to become less effective in the future.
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