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Facts

  Fact Category Datev  
16 DNA stands for deoxyribonucleic acid and contains genetic code. Science > Biology 02/06/09
17 Carbohydrates are made up of three elements: carbon, hydrogen, and oxygen; they have a monomer of sugars or starches. Science > Biology 02/05/09
18 By mass, about 18% of the human body is composed of the element carbon. Science > Biology 02/03/09
19 Carcinogens are any substances that have the capability of causing cancer. Science > Biology 02/03/09
20 In humans and most mammals, a female has two X chromosomes. Science > Biology 02/02/09
21 By mass, about 3% of the human body is composed of the element nitrogen. Science > Biology 02/02/09
22 By mass, about 10% of the human body is composed of the element hydrogen. Science > Biology 02/02/09
23 Primate cells, except for those of humans, have 24 pairs of chromosomes. Science > Biology 02/02/09
24 By mass, about 65% of the human body is composed of the element oxygen. Science > Biology 02/02/09
25 Human cells have 23 pairs of chromosomes. Science > Biology 02/02/09
26 In humans and most mammals, a male has an X and a Y chromosome. Science > Biology 02/02/09
27 Sporulation, which is used by mushrooms, is reproduction through the use of spores. Science > Biology 01/18/09
28 Binary fission is the form of asexual reproduction and cell division, which is mainly used by bacteria. Science > Biology 01/17/09
29 Mitosis is how a multi-cellular organism grows or gains body mass. Science > Biology 01/16/09
30 Budding is a form of reproduction in which a new organism is formed from a protrusion of an existing organism. Science > Biology 01/16/09


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