When multiple transitional fossils are found in many rock layers, they provide evidence of-

Seasonal variation in the diet of a species
An unchanging environment
Gradual change of a species over time
DNA functioning as the genetic material of the cell

1 answer

When multiple transitional fossils are found in many rock layers, they provide evidence of gradual change of a species over time. Transitional fossils showcase the gradual changes that occur in species as they evolve, supporting the theory of evolution by demonstrating the intermediate forms between ancestral and descendant species.