1 The study included the most common STDs: HPV, chlamydia, herpes simplex virus, and trichomoniasis. 2  There are approximately 15 million new cases of sexually transmitted infection each year in the United States, and 340 million worldwide.  The majority of STI's are asymptomatic (no symptoms).
Monocots have a trimerous flower, or a flower with parts in multiples of three. You can simply count the petals of a flower, and if you can divide the total number by three, you probably have a monocot. As you can see in this image of a lily, there are six petals in total, a multiple of three. Lilies are a type of monocot. In fact, many big, showy flowers like lilies, daffodils, bluebells, irises, orchids, and tulips are monocots. But flowers aren't the only way to recognize a monocot.
The most common example of a monocot leaf is a blade of grass. Cornhusks, rice, coconut, tulips and onions are all examples of monocot leaves. These are the most common type of monocots, but there are many more monocots that are more exotic and less common. The dicot leaf is a more popular type of leaf and can be found on maple trees, roses and sunflowers.