Question

A scientist is studying an infectious agent in a lab. Which observation best illustrates the importance of the theory of evolution in the field of medicine?

A. Organisms in Petri dish A have a mechanism that produces the same neurotoxin as the rest.
B. Organisms in Petri dish B have the largest cells relative to the rest.
C. Organisms in Petri dish C have twice as many genes on their DNA.
D. Organisms in Petri dish D have a mutation that allows them to survive treatment with medication.