Which of the following best describes reproductive structures common to both gymnosperms and angiosperms?

a.) seeds formed after combining pollen and egg cells during sexual reproduction
b.) male pollen grains and female egg cells in the same reproductive organ
c.) fruit containing seeds that is eaten and carried away by animals
d.) flowers designed to attract pollinators to assist in fertilization

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.