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.
1 Monocots have one cotyledon. 2  Monocot leaves tend to have parallel veins; in dicots the veins are netted. 3  Monocot floral parts are in multiples of 3; dicots are based on 4's or 5's. 4  The vascular bundles in monocots stems are scattered; in dicots they form a ring surrounding the pith. Monocot leaves tend to have parallel veins; in dicots the veins are netted. 2  Monocot floral parts are in multiples of 3; dicots are based on 4's or 5's. 3  The vascular bundles in monocots stems are scattered; in dicots they form a ring surrounding the pith.