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

placodermi

Science; General science

A class of fishes (Pisces) known from the Devonian Period, and a few that survived into the base of the Carboniferous. They were true fishes or gnathostomes, and can be distinguished from other ...

chondrichthyes

Science; General science

A class of fishes characterized by well-developed jaws and bony teeth; pectoral and pelvic girdles, each supporting paired fins; a cartilaginous skeleton that lacks true bone; toothlike scales of ...

oomycota

Science; General science

A class of fungi in the subdivision Mastigomycotina. They comprise a group of heterotropic, fungallike organisms that are classified with the zoosporic fungi (Mastigomycotina) but in reality are ...

parainsecta

Science; General science

A class of hexapod (six-legged) arthropods consisting of the orders Collembola and Protura. Class Parainsecta (also known as Ellipura) is one of several classifications of those hexapods, which, ...

A class of highly luminous yellow stars that vary periodically in brightness. Approximately one out of a thousand of the intrinsically brightest stars in any galaxy, like the Milky Way Galaxy, is a ...

gum

Science; General science

A class of high-molecular-weight molecules, usually with colloidal properties, which in an appropriate solvent or swelling agent are able to produce gels (highly viscous suspensions or solutions) at ...

ginkgoopsida

Science; General science

A class of largely extinct gymnosperms (Pinophyta). Included orders are Calamopityales, Callistophytales, Arberiales, Peltaspermales, Ginkgoales, Leptostrobales, Caytoniales, Pentoxylales, and ...