How do natural disasters weaken a community’s social infrastructure?
a. social systems are unbalanced by the damage caused by natural disasters.
b. natural disasters tend to target the poorest members of a community.
c. the number of natural disasters is increasing across the globe.
d. natural disasters can cause billions of dollars in property damage.

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.