Gene flow between populations of mice in New York city was found to be correlated with the contentedness of populations through

Gene flow between populations of mice in New York city was found to be correlated with the contentedness of populations through

Gene flow between populations of mice in New York city was found to be correlated with the contentedness of populations through




A. subway tunnels.
B. housing projects.
C. tree cover.
D. sewers.



Answer: D