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.
Imperial vs. Metric System. There are two main systems for measuring distances and weight, the Imperial System of Measurement and the Metric System of Measurement. Most countries use the Metric System, which uses the measuring units such as meters and grams and adds prefixes like kilo, milli and centi to count orders of magnitude. In the United States, we use the older Imperial system, where things are measured in feet, inches and pounds. It might be confusing if you are living in the U.S for the first time and are not used to this system.