HIV crossed from chimps to humans in the 1920's in what is now the Democratic Republic of Congo. This was probably as a result of chimps carrying the Simian Immunodeficiency Virus (SIV), a virus closely related to HIV, being hunted and eaten by people living in the area.
Kirby Bauer disk technique is a method to determine sensitivity of microorganisms yo antimicrobial drugs. The greater the efficacy of the chemical the larger zone of inhibition on around the drug containing disks at lowest concentration possible or the minimum inhibitory concentration. If the chemical found on the skin of frogs produce a large zone of inhibition at a very low concentration of the drug this can be a good antibiotic.
It is a positive relationship because they go hand in hand and both promos are about the same thing
1. exercise
2. range of motion
3. muscle myofibrils
4. lactic acid
5. poor posture
6. varicose veins
7. antagonistic muscles
In the middle of your chest. Hope that helps