Examlex
The reabsorption of both sodium and potassium is carefully regulated.
Environment
The surrounding physical, biological and socio-economic conditions in which an organism or community lives.
Shaping Development
The process by which behavior is gradually guided toward a desired pattern through positive reinforcement of successive approximations to the target behavior.
Cellular-Clock Theory
A theory suggesting that aging is the result of cells hitting a limit on the number of times they can divide, influenced by telomeres' length at the ends of chromosomes.
Free-Radical Theory
A theory suggesting that organisms age due to cells accumulating free radical damage over time.
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