Definition and meaning of q.e.:

q.e. - which is (quod est)

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of extirpated species:

extirpated species - a species that has been destroyed or removed completely from a particular area, region, or habitat. The species, however, may exist elsewhere, e.g., in a zoo or aquarium

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of entrainment:

entrainment - the synchronisation of one biological rhythm to another or to a zeitgeber cycle, e.g. circadian rhythms are often entrained to the light-dark cycle; also, the process of small organisms being captured in the cooling water of a power plant

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of ex situ conservation:

ex situ conservation - the preservation of components of biological diversity outside their natural habitats, e.g., in zoos, aquaria, botanic gardens and gene banks

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of esca:

esca - in some fishes, e.g. frogfishes, the first dorsal fin ray is modified to function as a fishing pole and lure. The part close to the body is the illicium or fishing pole. The esca is the lure on the end of the illecium

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of epiphyte:

epiphyte - microalgal organism living on a surface (e.g., on a seaweed frond); a plant living on the surface of another plant

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of endoderm:

endoderm - the inner germ layer of diploblastic and triploblastic embryos that gives rise to internal tissues such as the gut and gut derivatives, e.g., air bladder, lungs, and the lining of the digestive tract

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exopinacoderm:

exopinacoderm - the unicellular external surface of a sponge (ectosome composed of pinacocytes)

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exopodite:

exopodite - in crustaceans, the outer branch, or ramus, of a biramous appendage; also called "exopod"

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exoskeleton:

exoskeleton - an external skeleton or supportive covering of an animal formed from the ectoderm, as for example, the shell coverings of a crustacean, the calcium carbonate secretions of stony corals, or the bony plates of an armadillo

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exothecal dissepiment:

exothecal dissepiment - a horizontal partition outside of the corallite wall

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exothermic reaction:

exothermic reaction - a reaction that gives off heat

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exotic species:

exotic species - a non-native species that is introduced into an area; also referred to as alien or invasive species

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exozoochory:

exozoochory - the dispersal of plant seeds or spores accidentally attached to the outside of an animal's body; also called "epizoochory"

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of expected value:

expected value - in statistics, the mean value calculated for a statistic over an infinite number of samples

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of explanate coral colony:

explanate coral colony - a colony that spreads horizontally as the branches fuse into a solid or near solid plate

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exploitation:

exploitation - the removal of individuals or biomass from a population by predators or parasites

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exponent:

exponent - an expression of the number of times that a base is used as a factor

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exponential growth:

exponential growth - growth in the size of a population in which the rate of growth increases as the size of the population increases; change in a population growth rate that is proportional to the size of the population

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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Definition and meaning of exposure:

exposure - contact with infectious agents such as bacteria or viruses in a manner that promotes transmission and increases the likelihood of disease

(Source: US National Oceanic and Atmospheric Administration (NOAA) )

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