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  2. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    e. Mathematics education in the United States varies considerably from one state to the next, and even within a single state. However, with the adoption of the Common Core Standards in most states and the District of Columbia beginning in 2010, mathematics content across the country has moved into closer agreement for each grade level.

  3. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Ecology, evolution, and paleontology. Unsolved problems relating to the interactions between organisms and their distribution in the environment include: Paradox of the plankton. The high diversity of phytoplankton seems to violate the competitive exclusion principle. Ediacaran biota.

  4. Mathematical and theoretical biology - Wikipedia

    en.wikipedia.org/wiki/Mathematical_and...

    Theoretical biology focuses more on the development of theoretical principles for biology while mathematical biology focuses on the use of mathematical tools to study biological systems, even though the two terms are sometimes interchanged. [ 3 ][ 4 ] Mathematical biology aims at the mathematical representation and modeling of biological ...

  5. Educational stage - Wikipedia

    en.wikipedia.org/wiki/Educational_stage

    Dismantling the age-old 10+2 concept, the policy pitches for a "5+3+3+4" design corresponding to the age groups 3–8 years (foundational stage), 8–11 (preparatory), 11–14 (middle), and 14–18 (secondary). This brings early childhood education (also known as pre-school education for children of ages 3 to 5) under the umbrella of formal ...

  6. Polymorphism (biology) - Wikipedia

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

    Evolutionary biology. In biology, polymorphism[1] is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).

  7. Evolutionary biology - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_biology

    Evolutionary biology is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth.

  8. Outline of biology - Wikipedia

    en.wikipedia.org/wiki/Outline_of_biology

    Geobiology – study of the interactions between the physical Earth and the biosphere. Marine biology – study of ocean ecosystems, plants, animals, and other living beings. Microbiology – study of microscopic organisms (microorganisms) and their interactions with other living things. Bacteriology – study of bacteria.

  9. Phylogenetics - Wikipedia

    en.wikipedia.org/wiki/Phylogenetics

    In biology, phylogenetics (/ ˌ f aɪ l oʊ dʒ ə ˈ n ɛ t ɪ k s,-l ə-/) [1] [2] [3] is the study of the evolutionary history and relationships among or within groups of organisms.These relationships are determined by phylogenetic inference, methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology.

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