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- Immune system (14564 bytes)
1: ...e narrow sense, many higher organisms have organs dedicated to the maintenance of immunity, such as th...
3: It is often divided into the two sections of innate and adaptive imm...
6: .... While study of the bacterial immune system provides useful insights into immunology, higher organism...
8: ...e immune system is an organ system that acts as a defense against foreign [[pathogen]]s (such as [[vir...
11: ...rders ([[immunodeficiency]] and [[autoimmune disorder|autoimmunity]]) arise from failures of discrimin... - Film speed (5065 bytes)
4: ...national Organization for Standardization (ISO)]] defines both a linear scale and a logarithmic scale ...
6: ...wice as sensitive as a film rated ISO 100/21°.
8: ...re generally rated between 100/21° and 800/30°, inclusive.
10: The following table shows the correspondence between these scales:
11: {| border=1 - Film (18911 bytes)
4: ...licks'' — and most commonly ''movies''. Academics and the English-speaking international commun...
6: ...ception of motion — a psychological effect identified as [[beta movement]].
8: ...r of communication. Any film can become a worldwide attraction, especially with the addition of [[dub...
14: ...the underlying principle became the basis for the development of [[animation]].
16: ...ored on a single [[reel]], and led quickly to the development of a [[movie projector|motion picture pr... - Exposure (photography) (2778 bytes)
1: ...value|exposure value (ev)]]'', with higher values denoting more light.
3: The "correct" exposure for a photograph is determined by the sensitivity of the film used. Film...
7: ... In digital cameras, the photographer can also trade the ISO number against speed and aperture in any ...
10: ...to arrive at the correction required as different emulsions have different characteristics.
12: The [[Zone System]] is another method of determining exposure. - Soluble (2832 bytes)
4: ...ubility of one substance dissolving in another is determined by the [[intermolecular force|intermolecu...
6: ...solubility in [[aqueous]] solutions is often dependent on a '''solubility constant'''. The solubility...
10: ...ommon solvents used in [[organic chemistry]] include [[acetone]], [[ethanol]], [[water]], and [[benzen...
12: ...separate into two distinct phases or form milky [[emulsion]]s. - Acrylic paint (5135 bytes)
1: ... with water, but become water-resistant when dry. Depending on how much the paint is diluted (with wat...
4: ...polymer emulsion. This type of paint has gained widespread popularity among artists due to its fast-dr...
9: ...ry quickly, allowing artists to layer colors, add details, or make corrections in a relatively short t...
13: ...ntense and vibrant colors. Artists can create a wide spectrum of hues by mixing colors or diluting the...
15: ...ntricate detailing and the creation of a sense of depth. Acrylics also allow for wet-on-wet blending, ...
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