Whích scenario describes a relationship of parasitism? O A polar bear catches a seal for dinner.
O Birds feed off the insects that are stirred up from the grasses as cattle move through.
O A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.
O Oxpecker birds eat parasitic ticks off the backs of zebras.

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.