Which of these is the foundation for relative dating?
A. Earth is very old.
B. Deeper rock strata are older.
C. Radioisotopes decay at a constant rate.
D. Organisms can be closely related to each other.
biology - natural selection - Anonymous, Tuesday, March 3, 2015 at 11:55am
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biology - natural selection - Washington, Monday, June 29, 2015 at 10:33am
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