Final answer:
Lines on flower petals, known as nectar guides, attract bees that collect pollen and nectar. This interaction is vital for plant pollination, which supports plant reproduction and related industries. A decrease in bees would negatively impact plant populations and fruit-related industries.
Step-by-step explanation:
If a flower petal has a lot of lines, then it will attract a lot of bees. These lines are known as nectar guides which are visual cues that direct the bees, which are key pollinators, to the flower's center where nectar and pollen are available. Since bees collect pollen or nectar for their nourishment, flowers with these characteristics appeal to bees and enhance the chances of pollination. Therefore, the presence of lined petals facilitates not only the bees' search for food but also the reproductive success of the flowering plants.
Additionally, flowers have evolved traits to attract pollinators, such as bright colors and sweet scents, in exchange for the pollination service they provide. The symbiotic relationship between bees and flowering plants indicates that a decrease in bees due to lack of food (nectar) would likely result in a decline in flowering plant populations, as less pollination would occur. This could also have a domino effect on industries relying on fruits and by-products from pollinated plants, such as honey and jam production.