A population of wildflowers is separated by an eight-lane superhighway. Pollen is often carried by the
wind across the highway and can pollinate the flowers on the other side of the highway. Can speciation
occur in this situation?

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.