cómo los seres vivos generan más seres vivos y pasan sus características a las siguientes generaciones​

amber has allowed scientists to study dna that has been preserved over millions of years.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the answer is: metamorphic rocks often show the presence of fossils, also a

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-lavira: )

the correct answer is 2 and 4