During the ordovician period of the early paleozoic era, the first jawless fishes appeared on earth. these organisms belong to a group known as

a vertebrates
b mollusks
c trilobites
d corals

9. which of these are considered standard precautions for dealing with bodily fluids? check all that apply wearing gloves when providing patient care that may involve contact with blood checking a patient's chart to determine if there is a harmful blood disorder wearing aprons, masks, and protective eyewear when needed transporting a patient from a bed to a wheelchair to take him or her to a procedure washing hands when required cleaning equipment thoroughly before using it on the next patient