What makes the lungs the only place in the body where gas exchange with the atmosphere can occur?

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols

If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false

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.