Discusses the beneficial uses of bacteria in applications ranging from brewing and baking to industry and sewage treatment. Series: Microlife Interest Level: 5-8 Reading Level: 8.9 ATOS Book Level: 9.7 AR Interest Level: MG AR Points: 2 AR Quiz: 39680EN Guided Reading Level: X. Teaching Books: https://school.teachingbooks.net/tb.cgi?tid=13127.