Search results
Results from the WOW.Com Content Network
Halloween shop in Derry, Northern Ireland, selling masks. Halloween costumes were traditionally modeled after figures such as vampires, ghosts, skeletons, scary looking witches, and devils. [66] Over time, the costume selection extended to include popular characters from fiction, celebrities, and generic archetypes such as ninjas and princesses.
The history of biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine and the works of Aristotle, Theophrastus and Galen in the ancient Greco-Roman world.
In its original American broadcast, "Halloween (Part 1)" was seen by an estimated 2.96 million household viewers and gained a 1.7 ratings share among adults aged 18–49; a then series high. [8] The second part received a 1.6 ratings share among adults 18–49, down a tenth of a point from the first part. [9]
[1] [6] Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use. [ 7 ] [ 8 ] [ 9 ] Like other scientists, biologists use the scientific method to make observations , pose questions, generate hypotheses , perform experiments, and form conclusions about the world ...
[1] [2] The branches of science known informally as omics are various disciplines in biology whose names end in the suffix -omics, such as genomics, proteomics, metabolomics, metagenomics, phenomics and transcriptomics. The related suffix -ome is used to address the objects of study of such fields, such as the genome, proteome or metabolome ...
Samhain (/ ˈ s ɑː w ɪ n / SAH-win, / ˈ s aʊ ɪ n / SOW-in, Irish: [ˈsˠəunʲ], Scottish Gaelic: [ˈs̪ãũ.ɪɲ]) or Sauin (Manx: [ˈsoːɪnʲ]) is a Gaelic festival on 1 November marking the end of the harvest season and beginning of winter or the "darker half" of the year. [1]
The hierarchy of biological classification's eight major taxonomic ranks. A genus contains one or more species. Minor intermediate ranks are not shown. A species (pl.: species) is a population of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. [1]
The word homology, coined in about 1656, is derived from the Greek ὁμόλογος homologos from ὁμός homos 'same' and λόγος logos 'relation'. [8] [9] [a] Similar biological structures or sequences in different taxa are homologous if they are derived from a common ancestor. Homology thus implies divergent evolution.