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Two-tier healthcare is a situation in which a basic government-provided healthcare system provides basic care, and a secondary tier of care exists for those who can pay for additional, better quality or faster access. Most countries have both publicly and privately funded healthcare, but the degree to which it creates a quality differential ...
Such two-tier wage systems are often economically attractive to both employers and unions. Employers see immediate reductions in the cost of hiring new workers. [3] Existing union members see no wage reduction, and the number of new union members with lower wages is a substantial minority within the union and so is too small to prevent ...
The two-domain system is a biological classification by which all organisms in the tree of life are classified into two domains, Bacteria and Archaea. [ 1 ] [ 2 ] [ 3 ] It emerged from development of knowledge of archaea diversity and challenges the widely accepted three-domain system that classifies life into Bacteria, Archaea, and Eukarya . [ 4 ]
Systematic biology (hereafter called simply systematics) is the field that (a) provides scientific names for organisms, (b) describes them, (c) preserves collections of them, (d) provides classifications for the organisms, keys for their identification, and data on their distributions, (e) investigates their evolutionary histories, and (f ...
A consumer in a food chain is a living creature that eats organisms from a different population. A consumer is a heterotroph and a producer is an autotroph.Like sea angels, they take in organic moles by consuming other organisms, so they are commonly called consumers.
In biology, taxonomic rank (which some authors prefer to call nomenclatural rank [1] because ranking is part of nomenclature rather than taxonomy proper, according to some definitions of these terms) is the relative or absolute level of a group of organisms (a taxon) in a hierarchy that reflects evolutionary relationships.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
However, the two parts of a binomial name can each be derived from a number of sources, of which Latin is only one. These include: Latin, from any period, whether classical, medieval or modern. Thus, both parts of the binomial name Homo sapiens are Latin words, meaning "wise" (sapiens) "human/man" (Homo). Classical Greek.