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Wallastonite
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Powdery
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Spermicide
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Interneurone
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Complication
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Pulse
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Recessive
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Ring Nebula
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HDLC
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Clinical history
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Growth twin
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S-DMB
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Fructose
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Karman line
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M 95
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Giant panda
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Shared resource radio network
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Translocation
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Astrophysics
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Giant planet
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Tidal power plant
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Sclerenchyma
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Plutoid
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Thermal solar panel
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Sorosilicates
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Pink siris
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Heart
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Dark ages
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Concavenator corcovatus
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Asymmetric keys
Senescence
Senescence is the process of biological ageing which occurs following irreversible changes in an organism, leading to death.
It is a physiological process that begins after the maturity phase and results in inevitable progressive deterioration of vital functions: reproduction, motility, immune system, etc.
Senescence can be clearly seen in this old tree. © Matthieu Luna CC by-nc-nd 2.0
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