Final answer:
Fruits contribute to angiosperm diversity by attracting animals that disperse the seeds over broader areas, aiding plant species spread and survival.
Step-by-step explanation:
Fruits helped angiosperms diversify primarily because they attract animal seed dispersers. The wide array of fruit characteristics, such as sweetness, bright colors, and unique textures, evolved to attract specific animals. By consuming the fruits, animals aid in dispersing seeds far from the parent plant, thus enhancing the spread and survival of plant species. Some fruits, like cockleburs, have hooks to latch onto animal fur for dispersal, while others rely on animals to eat them and then excrete the seeds at a new location.