Vitamin K and Blood Thinners. Lettuce and other foods rich in vitamin K need to be carefully consumed when on blood thinning medications. The mechanisms of these drugs are sensitive to vitamin K levels in the body. If you're on a blood thinner, you can't consume either too much or too little vitamin K on a daily basis.
Length: A distance between two points. Meter: Basic unit of length in the metric system. Meter stick: A scientific instrument used to measure length and distance in the metric system. Metric system: A system of measurement used in science and in most countries of the world. Millimeter: A metric unit of measurement equaling 1/1000th of a meter. Abbreviated mm, there are 1,000 mm in 1 meter.
The two major systems of measurement in use in the world are the U.S. Customary System of measurement and the International System of Units, commonly known as the metric system. The majority of the world uses the metric measuring system.