Answer:
C. Yes, the results of his experiment were probably inaccurate the
first time.
Diversity is produced by mutation, it is what causes life to have advantages or disadvantages, and thus allow survival of the fittest to choose which mutation is the best suited for it's environment.
The flower mechanism that would not help them preventing pollination by a specie such as a foreign plant would be that the flowers of different species are then the same color and would attract the same pollinators.Hope this would be of help.
I have not learned that yet i wish i could help so sorry though good luck
