Fossils allow us to evaluate relative time, and, when tied into units that habe

Question

Fossils allow us to evaluate relative time, and, when tied into units that habe been directly dated by radioisotopic methods, absolute time. that different fossils represent certain ranges in absolute time is mainly because (circle best answer) (A) new species have been introduced to Earth at various times from alien sources by meteorite impact (B) the species on Earth have not changed at all through time (c) evolution has resulted in continual changes to the assemblage of living things on Earth so that many species existed for a limited time (limited in a geologic time sense).

Explanation / Answer

(c) .

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