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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 ...
An idyll (/ ˈ aɪ d ɪ l /, UK also / ˈ ɪ d ɪ l /; from Greek εἰδύλλιον (eidullion) 'short poem'; occasionally spelled idyl in American English) [1] [2] [3] is a short poem, descriptive of rustic life, written in the style of Theocritus's short pastoral poems, the Idylls (Εἰδύλλια). Unlike Homer, Theocritus did not engage ...
Plesiomorphy, symplesiomorphy, apomorphy, and synapomorphy, all mean a trait shared between species because they share an ancestral species. [a] Apomorphic and synapomorphic characteristics convey much information about evolutionary clades and can be used to define taxa. However, plesiomorphic and symplesiomorphic characteristics cannot.
Biology is the scientific study of life. [ 1 ] [ 2 ] [ 3 ] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. [ 1 ] [ 2 ] [ 3 ] For instance, all organisms are composed of at least one cell that processes hereditary information encoded in genes , which can be transmitted ...
All pages with titles containing idyll or idylls; All pages with titles containing idyl or idyls; All pages with titles beginning with Idyl; Idyll XI (bucolic poem #11) by Theocritus; Idyll VI (bucolic poem #6) by Theocritus; Idyllic school (The Idyllists), 19th century British art movement; Ideal (disambiguation) Idol (disambiguation) Idle ...
A clade is by definition monophyletic, meaning that it contains one ancestor which can be an organism, a population, or a species and all its descendants. [ note 1 ] [ 10 ] [ 11 ] The ancestor can be known or unknown; any and all members of a clade can be extant or extinct.
The black walnut secretes a chemical from its roots that harms neighboring plants, an example of competitive antagonism.. In ecology, a biological interaction is the effect that a pair of organisms living together in a community have on each other.
The history of ornithology largely reflects the trends in the history of biology, as well as many other scientific disciplines, including ecology, anatomy, physiology, paleontology, and more recently, molecular biology. Trends include the move from mere descriptions to the identification of patterns, thus towards elucidating the processes that ...