[Campbell Biology P.562] The provided table presents data on Geographic Distance km and Repr... | Practice Question

The provided table presents data on Geographic Distance km and Reproductive Isolation Value for dusky salamander populations. What general trend can be observed between these two variables based on the data?

  • A: As geographic distance increases, reproductive isolation generally increases.
  • B: As geographic distance increases, reproductive isolation generally decreases.
  • C: There is no clear relationship between geographic distance and reproductive isolation.
  • D: Reproductive isolation values are always lower for greater geographic distances.

Explanation

By observing the data table, especially the trend from Geographic Distance 15 km Isolation 0.32 to 247 km Isolation 0.82 and 219 km Isolation 1.5 , it is clear that as geographic distance increases, the reproductive isolation value generally increases, supporting the hypothesis mentioned in the text.