Sterile neutrinos coupling only Chemical Components and Biological Effects of Genus Origanum to third-generation fermions are attractive dark matter candidates.In an EFT approach we demonstrate that they can generate the observed relic density without violating constraints from direct and indirect detection.Such an EFT represents a gauged third-generation $B-L$ model, as well as third-generation scalar or A Resilience Engineering Approach for the Risk Assessment of IT Services vector leptoquarks.LHC measurements naturally distinguish the different underlying models.