What are the forces at work that keep the droplets of water on a penny

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

When ash and dust begin to settle on the ground, they eventually become compacted by

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.