Flushing History. Household toilets made between 1980 and 1992 flushed the bowl utilizing the gravitational force of 2.5 to 3.6 gallons of water, which meant that the average homeowner used as much as 18.8 gallons of water daily.
Lesson Summary. A monocot is a type of flowering plant that is characterized by having a single cotyledon, trimerous flowers, and parallel leaf veins. Monocots are economically important as food sources for both humans and animals, and they grow in a variety of habitats, including the tropics.esson Summary. A monocot is a type of flowering plant that is characterized by having a single cotyledon, trimerous flowers, and parallel leaf veins. Monocots are economically important as food sources for both humans and animals, and they grow in a variety of habitats, including the tropics.
Many of the most important food crops are examples of plants with monocot seeds including wheat, rice, and corn. Monocots have one cotyledon or embryonic leaf in their seeds differentiating them from dicots that have two. Monocot flowers have floral parts grouped in threes: parallel leaf veins, pollen grains with one pore or furrow and vascular bundles throughout the stem's tissue. As a food crop grown for more than 12,000 years, agronomists believe that wheat originated in southwestern Asia.