HELP you are along and have identified an adult who is not responsive. you have called 911. what is the next step in CPR
a. begin rescue breaths
b. go get help
c. try to find a pulse
d. begin chest compressions

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach

During the sixteenth, seventeenth, and eighteenth centuries, the mentally ill were housed in

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent.i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious.ii. microscope.iii. culture the substance on nutritive medium, away from any plant cells.iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious.if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv