The majority of chemolithotrophs are able to fix carbon dioxide (CO2) through the Calvin cycle, a metabolic pathway in which carbon enters as CO2 and leaves as glucose. For some substrates, the cells must cull through large amounts of inorganic substrate to secure just a small amount of energy.
By Mayo Clinic Staff. Borderline personality disorder is a mental health disorder that impacts the way you think and feel about yourself and others, causing problems functioning in everyday life. It includes a pattern of unstable intense relationships, distorted self-image, extreme emotions and impulsiveness.
Border is more often used than boundary in direct reference to a political dividing line; it may also refer to the region (of, for instance, a country) adjoining the actual line of demarcation: crossing the Mexican border; border towns along the Rio Grande.