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  2. Oxygen cycle - Wikipedia

    en.wikipedia.org/wiki/Oxygen_cycle

    Oxygen cycle refers to the movement of oxygen through the atmosphere (air), biosphere (plants and animals) and the lithosphere (the Earth’s crust). The oxygen cycle demonstrates how free oxygen is made available in each of these regions, as well as how it is used. The oxygen cycle is the biogeochemical cycle of oxygen atoms between different ...

  3. Primary nutritional groups - Wikipedia

    en.wikipedia.org/wiki/Primary_nutritional_groups

    Primary nutritional groups are groups of organisms, divided in relation to the nutrition mode according to the sources of energy and carbon, needed for living, growth and reproduction. The sources of energy can be light or chemical compounds; the sources of carbon can be of organic or inorganic origin. [ 1] The terms aerobic respiration ...

  4. Oxygen radical absorbance capacity - Wikipedia

    en.wikipedia.org/wiki/Oxygen_radical_absorbance...

    Oxygen radical absorbance capacity ( ORAC) was a method of measuring antioxidant capacities in biological samples in vitro. [1] [2] Because no physiological proof in vivo existed in support of the free-radical theory or that ORAC provided information relevant to biological antioxidant potential, it was withdrawn in 2012. [3] [4]

  5. This Cardiologist-Approved Food Chart Takes the Guesswork Out ...

    www.aol.com/cardiologist-approved-food-chart...

    While it’s certainly sobering that cardiovascular disease is the number one cause of death in this country, the good news is that this is a health condition that’s largely avoidable.

  6. Vitamin B6 - Wikipedia

    en.wikipedia.org/wiki/Vitamin_B6

    Vitamin B 6 Drug class Pyridoxal 5'-phosphate, the metabolically active form of vitamin B 6 Class identifiers Use Vitamin B 6 deficiency ATC code A11H Biological target enzyme cofactor Clinical data Drugs.com International Drug Names External links MeSH D025101 Legal status In Wikidata Vitamin B 6 is one of the B vitamins, and thus an essential nutrient. The term refers to a group of six ...

  7. Geological history of oxygen - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_oxygen

    Oxygen began building up in the atmosphere at approximately 1.85 Ga. At current rates of primary production, today's concentration of oxygen could be produced by photosynthetic organisms in 2,000 years. [ 4] In the absence of plants, the rate of oxygen production by photosynthesis was slower in the Precambrian, and the concentrations of O 2 ...

  8. File:The food chart (IA foodchart00char).pdf - Wikipedia

    en.wikipedia.org/wiki/File:The_food_chart_(IA...

    "Guide for balanced meals, Guide for dieting, Guide for decreasing weight, Guide for increasing weight, Guide for general health, Guide for cheaper meals, Suggestions for meals, Suggestions for combination of foods, Time for digesting food": 9 sheets in pocket

  9. Heterotroph - Wikipedia

    en.wikipedia.org/wiki/Heterotroph

    A heterotroph ( / ˈhɛtərəˌtroʊf, - ˌtrɒf /; [ 1][ 2] from Ancient Greek ἕτερος (héteros) 'other' and τροφή (trophḗ) 'nutrition') is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are primary ...