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- DictionaryFos·sil/ˈfäs(ə)l/
noun
- 1. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock: "sites rich in fossils"
13 hours ago · Paleontology ( / ˌpeɪliɒnˈtɒlədʒi, ˌpæli -, - ən -/ PAY-lee-on-TOL-ə-jee, PAL-ee-, -ən- ), also spelled palaeontology [a] or palæontology, is the scientific study of life that existed prior to the start of the Holocene epoch (roughly 11,700 years before present). [citation needed] It includes the study of fossils to classify ...
13 hours ago · 1991. The Cretaceous ( IPA: / krɪˈteɪʃəs / krih-TAY-shəs) [2] is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the ...
13 hours ago · Nevadacoelia wistae, a fossil anthaspidellid demosponge from the early Ordovician of Nevada. Although molecular clocks and biomarkers suggest sponges existed well before the Cambrian explosion of life, silica spicules like those of demosponges are absent from the fossil record until the Cambrian.
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13 hours ago · The griffin, griffon, or gryphon (Ancient Greek: γρύψ, romanized: grýps; Classical Latin: grȳps or grȳpus; Late and Medieval Latin: gryphes, grypho etc.; Old French: griffon) is a legendary creature with the body, tail, and back legs of a lion, and the head and wings of an eagle with its talons on the front legs.
13 hours ago · Algae ( UK: / ˈælɡiː / AL-ghee, US: / ˈældʒiː / AL-jee; [3] sg.: alga / ˈælɡə / AL-gə) are any of a large and diverse group of photosynthetic, eukaryotic organisms. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such ...
13 hours ago · Phosphorus is an essential mineral for humans listed in the Dietary Reference Intake (DRI). Food-grade phosphoric acid (additive E338 [104]) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. [105]
13 hours ago · The website Oxford Dictionaries and the Online Etymology Dictionary suggest the name is a blend of the words gene and chromosome. However, see omics for a more thorough discussion. A few related -ome words already existed, such as biome and rhizome, forming a vocabulary into which genome fits systematically. Definition
