Vertebral arch is the correct answer
Ck?... uhm Have a good day though, go drink water and eat
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.
Response plan, evacuation plan, and containment plan.