Examlex
In positive selection, thymocytes undergo apoptosis when:
I-They do not interact with MHC molecules
II-They bind to MHC molecules with high affinity
III-They bind to MHC molecules with low affinity
Late Teens
The period of life that encompasses ages approximately 16 to 19, marking the transition from adolescence to young adulthood.
Set-Point Theory
A theory suggesting that the body regulates its weight and energy store around a biologically predetermined point.
Fat Cells
Cells specialized in storing energy as fat, known scientifically as adipocytes, playing key roles in metabolism, energy storage, and hormone production.
Maslow's Hierarchy
A theory in psychology proposed by Abraham Maslow, presenting a hierarchy of human needs, from basic physiological needs to more complex psychological needs and self-actualization, influencing human motivation.
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