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

An order (or a class according to some taxonomists) of the Acanthocephala characterised by the presence of a small number of giant subcuticular nuclei which are similar to the embryonic nuclei. Body ...

Isoetales

Science; General science

An order in the class Lycopsida that diverged from the Lepidodendrales in the Late Devonian. These two groups have several characters that are not found in other lycopsids, notably a centralized, ...

Mugiliformes

Science; General science

An order in the class Actinopterygii, subdivision Euteleostei, superorder Acanthopterygii. The Mugiliformes comprise 17 genera and about 72 species, all in the single family Mugilidae, the mullets ...

Xiphosurida

Science; General science

An order (xiphosurids, or horseshoe crabs) of the class Xiphosura (phylum Arthropoda). These "sword-tailed" arthropods are a classic example of a "living fossils" group that has seemingly changed ...

Amphipoda

Science; General science

An order of crustaceans in the subclass Malacostraca, which lack a carapace, bear unstalked eyes, and respire by thoracic branchiae, or gills. The abdomen usually bears three pairs of biramous ...

Pedinoida

Science; General science

An order of Diadematacea, making up those genera that possess solid spines and a rigid test. The ambulacra show typical diadematoid structure, and the tubercles are noncrenulate. The single known ...

Caprimulgiformes

Science; General science

An order of crepuscular (active during predawn or twilight hours) or mainly nocturnal birds collectively known as the goatsuckers. The group is apparently most closely related to the owls ...