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2. List of animal classes - Wikipedia

   en.wikipedia.org/wiki/List_of_animal_classes

   The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by ...

3. Cavalier-Smith's system of classification - Wikipedia

   en.wikipedia.org/wiki/Cavalier-Smith's_system_of...

   [10] [11] The taxa "animal kingdom" (or kingdom Animalia) and "plant kingdom" (or kingdom Plantae) remain in use by some modern evolutionary biologists. The initial targets of Cavalier-Smith's classification, the protozoa were classified as members of the animal kingdom, [12] and many algae were regarded as part of the plant kingdom. With ...

4. List of types of equilibrium - Wikipedia

   en.wikipedia.org/wiki/List_of_types_of_equilibrium

   Partial equilibrium, the equilibrium price and quantity which come from the cross of supply and demand in a competitive market; Radner equilibrium, an economic concept defined by economist Roy Radner in the context of general equilibrium; Recursive competitive equilibrium, an economic equilibrium concept associated with a dynamic program

5. Kingdom (biology) - Wikipedia

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

   Combined with the five-kingdom model, this created a six-kingdom model, where the kingdom Monera is replaced by the kingdoms Bacteria and Archaea. [16] This six-kingdom model is commonly used in recent US high school biology textbooks, but has received criticism for compromising the current scientific consensus. [ 13 ]

6. Balance of nature - Wikipedia

   en.wikipedia.org/wiki/Balance_of_nature

   The balance of nature, also known as ecological balance, is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change (the size of a particular population, for example) will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system.

7. Domain (biology) - Wikipedia

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

   Carl Linnaeus made the classification "domain" popular in the famous taxonomy system he created in the middle of the eighteenth century. This system was further improved by the studies of Charles Darwin later on but could not classify bacteria easily, as they have very few observable features to compare to the other domains.

8. Taxonomic rank - Wikipedia

   en.wikipedia.org/wiki/Taxonomic_rank

   There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, and species. In addition, domain (proposed by Carl Woese ) is now widely used as a fundamental rank, although it is not mentioned in any of the nomenclature codes, and is a synonym for dominion ( Latin : dominium ), introduced by Moore in 1974.

9. Evolutionary game theory - Wikipedia

   en.wikipedia.org/wiki/Evolutionary_game_theory

   Animals must live in kin-groups during part of the game for the opportunity for this altruistic sacrifice ever to take place. Games must take into account inclusive fitness. Fitness function is the combined fitness of a group of related contestants – each weighted by the degree of relatedness – relative to the total genetic population.