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  2. Optimality model - Wikipedia

    en.wikipedia.org/wiki/Optimality_model

    In biology, optimality models are a tool used to evaluate the costs and benefits of different organismal features, traits, and characteristics, including behavior, in the natural world. This evaluation allows researchers to make predictions about an organism's optimal behavior or other aspects of its phenotype .

  3. DuPont analysis - Wikipedia

    en.wikipedia.org/wiki/DuPont_analysis

    Net Income = pre-tax income after taxes; Equity = shareholders' equity; EBIT = Earnings before interest and taxes; Pretax Income is often reported as Earnings Before Taxes or EBT; This decomposition presents various ratios used in fundamental analysis. The company's tax burden is (Net income ÷ Pretax profit). This is the proportion of the ...

  4. Financial ratio - Wikipedia

    en.wikipedia.org/wiki/Financial_ratio

    A financial ratio or accounting ratio states the relative magnitude of two selected numerical values taken from an enterprise's financial statements. Often used in accounting , there are many standard ratios used to try to evaluate the overall financial condition of a corporation or other organization.

  5. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.

  6. Ecological efficiency - Wikipedia

    en.wikipedia.org/wiki/Ecological_efficiency

    Another useful metric to introduce is the production to biomass ratio (P/B), which describes the turnover of plant material per year. In marine environments, phytoplankton grow quickly and are almost immediately grazed; this is evidenced by that fact that phytoplankton biomass can turn over 100–300 times per year.

  7. Net income - Wikipedia

    en.wikipedia.org/wiki/Net_income

    Net income can also be calculated by adding a company's operating income to non-operating income and then subtracting off taxes. [4] The net profit margin percentage is a related ratio. This figure is calculated by dividing net profit by revenue or turnover, and it represents profitability, as a percentage.

  8. Net ecosystem production - Wikipedia

    en.wikipedia.org/wiki/Net_ecosystem_production

    Net ecosystem production (NEP) in ecology, limnology, and oceanography, is the difference between gross primary production (GPP) and net ecosystem respiration. [1] Net ecosystem production represents all the carbon produced by plants in water through photosynthesis that does not get respired by animals , other heterotrophs , or the plants ...

  9. United States biological defense program - Wikipedia

    en.wikipedia.org/wiki/United_States_biological...

    In two National Security Memoranda, [16] [17] the U.S. government renounced all development, production, and stockpiling of biological weapons and declared its intent to maintain only small research quantities of biological agents, such as are necessary for the development of vaccines, drugs, and diagnostics.