Look at these rock layers. Which of the following must be correct? This is an igneous rock. It formed from minerals

This is a metamorphic rock, it formed when molten rock cooled.

This is a sedimentary rock, the oldest rock layer is at the top, the youngest rock layer is at the bottom

This is a sedimentary rock, the youngest rock layer is at the top, the oldest rock layer is at the bottom.

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.