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In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked