Prerequisite for "Mechanical Mouthparts" seems to be wrong or incomplete. Having 1x (or more) Food Banking, per se, does not unlock it.
The prerequisite for "All-Purpose Oils" also seems to be wrong or incomplete.
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Cell to Singularity Wiki
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Prerequisite for "Mechanical Mouthparts" seems to be wrong or incomplete. Having 1x (or more) Food Banking, per se, does not unlock it.
The prerequisite for "All-Purpose Oils" also seems to be wrong or incomplete.