Variation means which of the following? a
Traits that are passed on will ultimately become common within the population
b
All species will produce more offspring than will survive to adulthood
c
There are variations between members of the same species
d
Traits that increase suitability to a species' environment are seen. Some traits are selected for, and some are selected against based on fitness.

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.