A veterinarian wants to test a strain of antibiotic on calves to determine their resistance to common infection. in a pasture are 22 newborn calves. there is enough vaccine for 10 calves. however, blood tests to determine resistance to infection can be done on all calves. (select all that apply.)

Calves are susceptible to infection. Therefore, there is a need to test out a new type of antibiotic in order to learn whether or not we can prevent said infections from occurring. Although there are more calves in a pasture than number of vaccines, for this purpose there are enough blood tests available.