Some rock layers form when sediment is deposited in deep water, while other rock layers form when sediment is deposited in shallow water. If a rock column shows deep-water rock layers covered by shallow-water rock layers, then sea level has decreased at that location over time.
Which sequence of rock layers provides theBESTevidence that sea level has decreased over time at a given location?

Ts assignment - snow day assignment genetic variation and natural selection natural selection relies on genetic variation. in any population of beetles, there are alleles for brown or green color. what happens to the genotype and the phenotype of the beetle population when there are distinct advantages and disadvantages due to color? order the steps that take place during natural selection in this beetle population.