Which best describes the cell theory? a. scientists know all there is to know about cells, so the cell theory will not change. b. as technological advancements are made, the cells theory may change. c. a theory, once formulated, can not be change. d. the development of a synthetic cell has caused the cell to change.

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.