Life history trade-offs occur when limited resources must be allocated among competing traits including reproduction, somatic maintenance, and activity.
Energy balance was estimated as the difference between energy consumed and energy expended (maintenance and activity) and differed between food-deprived treatments at the 1.5 (P < 0.01) and 6.1 m (P < 0.05) costs.
The selective loss of the biosynthetic genes could be related to the enormous costs that are associated with the maintenance and activity of the giant gene cluster and the corresponding enzymatic complex.
Similarly, postnatal neuronal-specific inactivation of Htt is accompanied by progressive apoptotic neuronal degeneration, which suggests an essential function of the protein in the neuronal maintenance and activity.
BCICs can be distinguished from other breast cancer cells by the expression of so-called CIC-markers that play a vital role in BCIC maintenance and activity [ 10].
A number of interesting molecular networks were enriched for miR-25 targets, including p53 signaling, hypoxia signaling, and nitric oxide signaling, which are all important for NSC maintenance and activity [ 75- 77].
