Question

question 14
if fossil remains are found in several layers of the strata, what does this indicate?
the species evolved externally but the fossils did not change.
the fossils were preserved in different ways and decayed at different rates.
that species lived during various transitions in the composition of earth.
the fossils shifted due to plate tectonics.

Explanation:

Fossils in different strata layers suggest the species existed across various geological time periods (Earth's compositional transitions). Plate tectonics shifting fossils would be less common and not the main implication. Fossil preservation/decay rates (second option) don't directly explain multiple - layer presence. Species evolving externally but fossils not changing (first option) is not a typical geological interpretation.

Answer:

That species lived during various transitions in the composition of Earth.