The phrase "activated by internal" is correct and usable in written English.
It can be used in contexts where something is triggered or initiated by internal factors or mechanisms.
Example: "The system is activated by internal signals that indicate a need for maintenance."
Alternatives: "triggered by internal" or "initiated by internal".
The telomerase gene map to human chromosome 5, suggests that it is activated by internal amplification of this chromosome in TMC.
The biological processes in a cell are controlled and regulated by signaling pathways that are activated by internal and external signaling receptors and factors.
Unlike mouse KSper, the principal K channel in human sperm is primarily activated by internal Ca2+, but only modestly by alkaline pH.
This channel is activated by internal calcium, with a lower bound of [Ca2+]in = 20 µM in whole cell patch clamp experiments in which current was observed.
The process of adult neurogenesis can be overviewed in Figure 2. Radial-glia-like neural stem/precursor cells existing in the SGZ are usually regarded as relatively quiescent but can be activated by internal and external stimulus.
[Editors' note: further revisions were requested prior to acceptance, as described below.] Unlike mouse KSper, the principal K channel in human sperm is primarily activated by internal Ca 2+, but only modestly by alkaline pH.
As a result, many cells are activated by their internal levels of RIG-I (which is not significantly different from the average) and so the average activation of IFNB1 occurs earlier.
(1976) suggested that this omission response could in part reflect anticipatory events activated by an internal representation of the temporal rhythm of stimulus presentation.
While ASK1 is known to be activated by several internal or external environmental stressors, the extent and duration of the exposure to them is crucial to determine subsequent cell fate.
Start small and learn the two basic categories of Nerf weaponry: Spring guns are activated by an internal spring that is compressed by racking a plastic slide on the back of the gun between every shot.
The components of the apoptotic signaling network are genetically encoded in an inactive form and are activated by various external and internal stimuli including DNA damage, drugs, or irradiation [3], [4].
