It is important to vortex your fluid sample tube during the epidemiology simulation in order to
make sure that any pbs in the solution is evenly distributed.
provide oxygen for any "infectious agent" that might be present in the solution in the tube.
provide oxygen necessary for the elisa performed next.
make sure the rabbit anti-bsa antibodies are evenly distributed throughout the solution in the tube.

It is important to vortex your fluid sample tube during the epidemiology simulation in order to provide oxygen necessary for the ELISA performed next.

Option C

Explanation:

Epidemiology simulation modeling is a way with which we can study about a particular disease. In this way, there is hypothetical spread of the disease in the body of the organism with which it has to by studied.

This is done to make certain strategies and ways and methods with which the spread of the disease can be stopped or even if some one has caught the disease, then that can be cured with the proper treatment of the disease.

the answer is d. chordata