How is the adaptability of flowering plants to insect pollination manifested?

Many flowering plants are pollinated by insects. For this, they have a number of adaptations. Pollination does not occur by insects on purpose. Bees and other pollinators collect nectar and carry pollen from flower to flower. To attract insects, plants have brightly colored petals that stand out from the soil and leaves. Also, insects are attracted by the pollen they feed on. To protect the pollen from being washed out by rain and weathering, the flowers have the ability to close at night.