1 Habitat fragmentation: Much of the remaining terrestrial wildlife habitat in the U.S. has been cut up into fragments by roads and development. 2  Aquatic speciesâ habitat has been fragmented by dams and water diversions.
As for simple antibiotics, they too kill bacteria in the beginning. But in the long run theyâre even worse, because the p.acnes bacteria is becoming resistant to them. The most common antibiotics used by acne patients over the last 30 years are erythromycin, tetracycline, doxycycline, and minocycline. Like any antibiotic they are specially targeted to kill bacteria and originally they killed p.acnes wellâ¦.
Acne myths.  1 Acne is caused by a poor diet.  2 Acne is caused by having dirty skin and poor hygiene.  3 Squeezing blackheads, whiteheads and spots is the best way to get rid of acne.  4 Sexual activity can influence acne.  5 Sunbathing, sunbeds and sunlamps help improve the symptoms of acne.  6 Acne is infectious.