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  2. Biological tests of necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Biological_tests_of...

    Biological tests of necessity and sufficiency refer to experimental methods and techniques that seek to test or provide evidence for specific kinds of causal relationships in biological systems. A necessary cause is one without which it would be impossible for an effect to occur, while a sufficient cause is one whose presence guarantees the ...

  3. Doctrine of necessity - Wikipedia

    en.wikipedia.org/wiki/Doctrine_of_necessity

    The doctrine of necessity is the basis on which extraordinary actions by administrative authority, which are designed to restore order or uphold fundamental constitutional principles, are considered to be lawful even if such an action contravenes established constitution, laws, norms, or conventions.

  4. Necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Necessity_and_sufficiency

    In logic and mathematics, necessity and sufficiency are terms used to describe a conditional or implicational relationship between two statements. For example, in the conditional statement: "If P then Q", Q is necessary for P, because the truth of Q is guaranteed by the truth of P.

  5. Category:Necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Category:Necessity_and...

    Biological tests of necessity and sufficiency; C. Closed concept; E. Extensional and intensional definitions; I. If and only if This page ...

  6. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    Biology is the scientific study of life. [1] [2] [3] ... and supplies most of the energy necessary for life on Earth. ... is the result of spatial differences in gene ...

  7. Military necessity - Wikipedia

    en.wikipedia.org/wiki/Military_necessity

    The judgement of a field commander in battle over military necessity and proportionality is rarely subject to domestic or international legal challenge unless the methods of warfare used by the commander were illegal, as for example was the case with Radislav Krstic who was found guilty as an aider and abettor to genocide by International Criminal Tribunal for the former Yugoslavia for the ...

  8. Chance and Necessity - Wikipedia

    en.wikipedia.org/wiki/Chance_and_Necessity

    Chance and Necessity: Essay on the Natural Philosophy of Modern Biology (French: Le Hasard et la Nécessité: Essai sur la philosophie naturelle de la biologie moderne) is a 1970 book by Nobel Prize winner Jacques Monod.

  9. Human biology - Wikipedia

    en.wikipedia.org/wiki/Human_biology

    Human biology is an interdisciplinary area of academic study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics, and sociocultural influences.