Groups of organisms that may have been separated for millions of years may be brought together in new combinations primarily by
A)shifting weather patterns.
B)changes in ocean currents.
C)plate tectonics.
D)changes in the Earth's magnetic fields.

Question

Quizplus · Accepted Answer

Plate tectonics can cause continents to drift apart or collide, resulting in the separation or merging of species. This can lead to new combinations of species that have been separated for millions of years. Shifting weather patterns, changes in ocean currents, and changes in the Earth's magnetic fields may affect the distribution of species, but are less likely to bring together groups of organisms that have been separated for such long periods of time.

Groups of Organisms That May Have Been Separated for Millions