Final answer:
Sexual selection in flowering plants is most closely analogous to intersexual selection in animals.
Step-by-step explanation:
Sexual selection in flowering plants can be most closely analogous to intersexual selection in animals. Intersexual selection occurs when individuals of one sex choose mates of the other sex based on certain traits. In flowering plants, certain traits, such as bright colored petals or strong fragrance, can attract pollinators and increase the plant's chances of reproduction. Similarly, in animals, certain traits in one sex may be preferred by the opposite sex, leading to the selection of individuals with those traits for mating.