Birds like hummingbirds see red, orange, yellow, no strong scent. Bat pollinated flowers bloom at night, and have strong scent of fermented fruit. Plants evolved animal attractants, and animals evolved specialized body parts. Animal behavior has coevolved, too. Some orchids look like female insects.
Males pseudocopulate with orchid flowers.
Wind pollinates grasses, ragweed, maples, oaks. Pollen on stigma, tube cell grows tube down through style, into an ovule in ovary. 2nd pollen cell divides into 2 sperm cells. Double fertilization means both sperm fertilize. One with the egg, Other.