General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

grapefruit

Science; General science

A citrus fruit, Citrus paradisi . It apparently arose as a hybrid of shaddock or pummelo and sweet orange in the West Indies. Its first recorded mention was in Barbados in 1750, and the first use ...

A class (also known as Filicineae) of the plant division Polypodiophyta containing a large group of plants commonly called ferns. They are widely distributed throughout the world with their greatest ...

lycopsida

Science; General science

A class (formerly Lycopodiopsida) of the division Lycophyta. It probably evolved in the Early Devonian from a zosterophyllopsid ancester; all six constituent taxonomic orders had probably evolved by ...

euglenophyceae

Science; General science

A class coextensive with the division Euglenophycota, comprising unicellular colorless or photosynthetic flagellates with very distinctive cytological characters. In protozoological classification, ...

cephalopoda

Science; General science

A class in the phylum Mollusca that is exclusively marine and contains the extant members—squids, cuttlefishes, octopuses, and the chambered nautiluses—and the fossil taxa—ammonoids, nautiloids, and ...

scaphopoda

Science; General science

A class in the phylum Mollusca, comprising two orders, Gadilida and Dentaliida. The class is wholly marine; it is common and probably most diverse in the deep sea, and poorly represented in brackish, ...

prymnesiophyceae

Science; General science

A class of algae (also known as Haptophyceae) in the chlorophyll a-c phyletic line (Chromophycota). In protozoological classification these organisms constitute an order, Prymnesiida or ...