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2. Kingdom (biology) - Wikipedia

   en.wikipedia.org/wiki/Kingdom_(biology)

   Intermediate minor rankings are not shown. In biology, a kingdom is the second highest taxonomic rank, just below domain. Kingdoms are divided into smaller groups called phyla (singular phylum). Traditionally, some textbooks from the United States and Canada used a system of six kingdoms ( Animalia, Plantae, Fungi, Protista, Archaea ...

3. Digit ratio - Wikipedia

   en.wikipedia.org/wiki/Digit_ratio

   The digit ratio is the ratio taken of the lengths of different digits or fingers on a hand . The most commonly studied digit ratio is that of the 2nd ( index finger) and 4th ( ring finger ), also referred to as the 2D:4D ratio, measured on the palm side. It is proposed that the 2D:4D ratio indicates the degree to which an individual has been ...

4. The Selfish Gene - Wikipedia

   en.wikipedia.org/wiki/The_Selfish_Gene

   The Selfish Gene. The Selfish Gene is a 1976 book on evolution by ethologist Richard Dawkins, in which the author builds upon the principal theory of George C. Williams 's Adaptation and Natural Selection (1966). Dawkins uses the term "selfish gene" as a way of expressing the gene-centred view of evolution (as opposed to the views focused on ...

5. Biological thermodynamics - Wikipedia

   en.wikipedia.org/wiki/Biological_thermodynamics

   Biological thermodynamics (Thermodynamics of biological systems) is a science that explains the nature and general laws of thermodynamic processes occurring in living organisms as nonequilibrium thermodynamic systems that convert the energy of the Sun and food into other types of energy. The nonequilibrium thermodynamic state of living ...

6. Burn - Wikipedia

   en.wikipedia.org/wiki/Burn

   A burn is an injury to skin, or other tissues, caused by heat, cold, electricity, chemicals, friction, or ultraviolet radiation (such as sunburn ). [ 5][ 9] Most burns are due to heat from hot liquids (called scalding ), solids, or fire. [ 10] Burns occur mainly in the home or the workplace. In the home, risks are associated with domestic ...

7. Biofuel - Wikipedia

   en.wikipedia.org/wiki/Biofuel

   Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels such as oil. Biofuel can be produced from plants or from agricultural, domestic or industrial biowaste. [ 1] Biofuels are mostly used for transportation, but can also be used for ...

8. Digit (anatomy) - Wikipedia

   en.wikipedia.org/wiki/Digit_(anatomy)

   Humans normally have five digits on each extremity. Each digit is formed by several bones called phalanges, surrounded by soft tissue. Human fingers normally have a nail at the distal phalanx. The phenomenon of polydactyly occurs when extra digits are present; fewer digits than normal are also possible, for instance in ectrodactyly.

9. Domain (biology) - Wikipedia

   en.wikipedia.org/wiki/Domain_(biology)

   Intermediate minor rankings are not shown. In biological taxonomy, a domain ( / dəˈmeɪn / or / doʊˈmeɪn /) ( Latin: regio[ 1 ] ), also dominion, [ 2 ]superkingdom, realm, or empire, is the highest taxonomic rank of all organisms taken together. It was introduced in the three-domain system of taxonomy devised by Carl Woese, Otto Kandler ...