system
Given the following post, respond as if you're commenting on Reddit:
human
[The Terminator] What sustained the living tissue that covered the t800 model infiltrators?

What kept the tissue alive? where there reservoirs of nutrients? was there a way for the T800's to ingest food and metabolize it? Did the muculature on top of the endoskelaton provide any measurable strength to the terminator's movement?
gpt
Database quote.

Mankind unraveled the human genome and identified the genes which controlled cell life-span and degradation. Using this information, stored within its vast databases, Skynet was able to eliminate these unwanted genes from cells prior to industrially growing biological components for the Series 800 Terminator.
This means that the skin and muscles of the Series 800 Terminators, unlike the human equivalents, do not wear down, degrade or necrotize over relatively short periods of time. It also means that the T-800's biological components will not rot over long periods of time, and do not require a flow of nutrients or anti-bodies. However, if a T-800 is left on the battlefield for too great a period, its biological components will begin to rot, and its cover will be blown.

Though it does not need nutrient or blood flow, the T-800 has a circulatory system which is controlled by a tiny pneumatic pump which maintains a constant pressure. This allows the T-800 to bleed convincingly when wounded. However, the living tissue of the T-800's is still prone to necrotizing after a period. Therefore, when not in active service, flesh covered T-800's are stored in special racks in a cryogenic vault to preserve the flesh from deteriorating.

In the film The Terminator, after being shot multiple times during the shootout in the police precinct, T-800's skin has a noticeably pale color and flies are sitting on its face. At this point the janitor of the building, which T-800 was using as a safehouse, commented on the smell of decay coming from T-800's room: "Hey, buddy, got a dead cat in there, or what?" Thus the living tissue of Series 800 apparently may "die" or at least undergo extensive necrosis. Nevertheless, in Terminator 2: Judgment Day, when the T-800 was having bullets removed from his back, it explained that the wounds would heal over time. So it seems the living tissue sheaths of the Series 800 are still capable of limited regeneration thus aiding in future infiltration. Judging from the first film, however, the tissue may be damaged so much that the necrosis will spread beyond regeneration.

The sheaths used on the Series 888 Infiltrators appear to be noticeably superior to previous models, as there are many instances where the flesh has repaired extensive damage within a few hours, leaving only scars that would disappear not too long after that. T-888s are also capable of lasting extended periods; one such machine having bricked itself inside a wall for over 40 years. "Self Made Man" These machines also seem to nourish their organic components through consumption of certain foods, including mostly carbohydrates.