Why was the discovery of lucy so important?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which statement best describes the role of religion and culture in ancient medicine?

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.