Final answer:
The hierarchy for taxa is from species to domain; for cellular differentiation potential, it is from unipotency to pleuripotency; and for organizational levels, it goes from a hydrogen atom to planet Earth.
Step-by-step explanation:
When ordering terms from least to most substaintal, it's important to understand the context in which these terms are used. For example, in a biological context when organizing taxa, the order from the most specific to the most inclusive is species, genus, family, order, class, phylum, kingdom, and domain, with 'species' being the most specific categorization of organisms and 'domain' being the most encompassing.
In terms of cellular differentiation potential, the hierarchy from least to most specialized is unipotency, multipotency, oligopotency, and pleuripotency. 'Unipotent' cells are specialized to one cell type, whereas 'pleuripotent' cells can differentiate into multiple types, including different germ layers.
If we look at organizational levels of a biological system, the order from the smallest to most encompassing is hydrogen atom, water molecule, skin cell, liver, wolf pack, elephant, tropical rainforest, and planet Earth. The hydrogen atom is the fundamental building block, and planet Earth represents the largest sphere of biological organization.