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Determining whether an observed feature is a true biosignature is complex. There are three criteria that a potential biosignature must meet to be considered viable for further research: Reliability, survivability, and detectability.
having uniform color throughout: cougar, Puma concolor; white fir, Abies concolor: conno-G κόννος (kónnos) beard: wildebeest, Connochaetes gnou: All pages with titles beginning with Conno: copros: G κόπρος (kópros) excrement: Copris, genus of dung beetles; coprophilous, 'growing on animal dung' corax: L corvus G κόραξ (kórax ...
Botany (Greek Βοτάνη (botanē) meaning "pasture", "herbs" "grass", or "fodder" [2]; Medieval Latin botanicus – herb, plant) [3] and zoology are, historically, the core disciplines of biology whose history is closely associated with the natural sciences chemistry, physics and geology. A distinction can be made between botanical science ...
Adaptation is a major topic in the philosophy of biology, as it concerns function and purpose . Some biologists try to avoid terms which imply purpose in adaptation, not least because it suggests a deity's intentions, but others note that adaptation is necessarily purposeful.
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 made up of cells that process hereditary information encoded in genes , which can be transmitted to future ...
Eukaryotes are organisms that range from microscopic single cells, such as picozoans under 3 micrometres across, [6] to animals like the blue whale, weighing up to 190 tonnes and measuring up to 33.6 metres (110 ft) long, [7] or plants like the coast redwood, up to 120 metres (390 ft) tall. [8]
They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust.
Aristotle[A] (Greek: Ἀριστοτέλης Aristotélēs; [B] 384–322 BC) was an Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts.