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DCI can be caused by two different mechanisms, which result in overlapping sets of symptoms. The two mechanisms are: Decompression sickness (DCS), which results from metabolically inert gas dissolved in body tissue under pressure precipitating out of solution and forming bubbles during decompression. It typically afflicts underwater divers on ...
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 ...
In good DCI style, a Role addresses another object only in terms of its (methodless) Role. There is a special Role called self which binds to the object playing the current Role. Code within a Role method may invoke a method on self and thereby invoke a method of the data part of the current object.
In biological classification, class (Latin: classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. [a] Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order. [1]
The species name is also called a binomial, that is, a two-term name. For example, the zoological name for the human species is Homo sapiens. This is usually italicized in print or underlined when italics are not available. In this case, Homo is the generic name and it is capitalized; sapiens indicates the species and it is not capitalized ...
The quiz can be accessed from every term page in the Glossary. Users can choose to test their knowledge about terms commonly found in K-16 science classrooms or, more generally, in popular news reports or conversation. The quiz randomly chooses terms from the Talking Glossary and asks the user to select a term name to match the definition shown.
Both terms are relative: a derived trait for one clade may be an ancestral trait for a different clade. The term "derived trait" is often used interchangeably with the more technical term apomorphy. descendant developmental biology diploid. Denoted in shorthand with the somatic number 2n.
An example is thermo-regulation in Sauropsida, which is the clade containing the lizards, turtles, crocodiles, and birds. Lizards, turtles, and crocodiles are ectothermic (coldblooded), while birds are endothermic (warmblooded). Being coldblooded is symplesiomorphic for lizards, turtles, and crocodiles, but they do not form a clade, as ...