Worlds of microbes (viruses in chapter 19) lall really small. How big is a micrometer? (really really small: 1/1,000,000 of a meter, the period" at the end of each sentence is about 1000 micrometers. Active: has the ability to reproduce over time. New flu: called swine flu, h1n1, h: hemagglutinin, n: neuraminidase. Each one of the viruses comes in and infects the pig (pig, human, and bird); leave 8 copies of each. Forms new viral particle has only 8 single stranded rna (2 bird, 4 pig, 2 human): bird flu gets into lower respiratory and is not easily spread. ***rather get the flu than hiv because the flu does not mutate as fast as hiv. Extra: bacteria, archaea, and eukarya all have microbes (test question) Bioremediation: can use microbes or modified bacteria specified for cleaning up different things or producing materials (biodiesel, ethanol, medicine, food)