Which statement is scientifically based? A. Mutations rarely occur.
B. All mutations are harmful.
C. Some mutations can be contagious, like infections.
D. Mutations are not passed from parent to offspring

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

What enzyme is most important for dna replication and why?