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threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
(adj.) lacking politeness or good manners; lacking sensitivity; difficult to work with or deal with; rude
either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposes
an act of gerrymandering (dividing a voting area so as to give your own party an unfair advantage)
a hemoprotein composed of globin and heme that gives red blood cells their characteristic color
a former Chinese custom of touching the ground with the forehead as a sign of respect or submission
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
the branch of engineering that deals with things smaller than 100 nanometers (especially with the manipulation of individual molecules)
a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve
a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data
process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
colorless watery fluid of blood and lymph containing no cells and in which erythrocytes and leukocytes and platelets are suspended
a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers
practice of classifying plants and animals according to their presumed natural relationships
characterized by a government in which the political authority exercises absolute and centralized control
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