2. http://www.flickr.com/photos/microbeworld/5716327361/

3. http://www.flickr.c
om/photos/wwwo
rks/3562024338

4. http://www.flickr.com/photos/ericfortin/2182088930

5. http://www.flickr.com/photos/36128932@N03/3338845735/

6. http://www.flickr.com/photos/berkeleylab/2825656417/

7. Fungi
http://toenailfungustreatments.com/

8. http://healthcenterinternationalresearches.webs.com/apps/blog/sh
ow/3915135-how-your-immune-system-works

10. Flagella- http://www.flickr.com/photos/striatic/3834479/lightbox/

11. Fruit Rind with harmful pathogens
http://www.flickr.com/photos/news21/6110298959/