When performing the Kastle-Meyer test, a blood spatter analyst will perform a positive and negative control before testing the samples at the scene. If, during an experiment, both the positive and negative controls produce the same results, what should be done and why?

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

materials water oxygen those are the things i can think of in this moment.

the correct answer is d