Within the confines of a single organism, the reaction of the immune system to antigens has all the characteristics of selection processes, but when the organism dies all of these adaptations are lost.
Considering that a great part of favourable hemodynamic, cardiorespiratory, and muscle strength adaptations are lost within 3 months of exercise cessation [ 6], it is essential for CAD patients to follow a regular and uninterrupted exercise program throughout life.
When arterial pressures are low, renal autoregulation adaptation is lost and renal vascular resistances are increased, with subsequent renal hypoperfusion and ischemia.
Hence, initial adaptation was lost by generation 25.
Even more gain can be achieved by enabling the MAC layer adaptation: when using only MAC layer adaptation, no BL packets were lost, and in the case of the MAC plus application layer adaptation, only 0.6 BL packets were lost, in average, for the Foreman sequence.
Presumably, the corresponding enzymes were lost in adaptation to parasitism.
During the evolution of placental mammals, many of these specialized adaptations to a strongly diurnal niche were lost [35].
The explanation that pads were lost as an adaptation for walking on the sand isn't satisfying when one finds that the lizards don't seem to be using the sand.
Unlike previous studies that compared homologous proteins in mesophiles and thermophiles (Jaenicke 2000; Kumar and Nussinov 2001), we compared the thermodynamic stability of proteins that were lost during thermal adaptation with that of proteins that remained in the genome (supplementary material, Supplementary Material online).
More elements were lost in the M9 than in the broth adaptation.
Approximately half the elements that were lost lie within large deletions commonly observed during adaptation of the wild-type genome.
