Why are finches in the Galápagos Islands a good example of speciation?
A. Galápagos finches do not have to compete for food.
B. It is very easy to train a Galápagos finch to eat larger seeds.
C. There is only one species of finch living in the Galápagos Islands.
D. Galápagos finches have different kinds of beaks that match food
sources.

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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.