three populations of crickets look very similar, but the males have courtship songs that sound different. what function would this difference in song likely serve if the populations came in contact?

a time line cause it goes from 685 to 978

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.