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ephedra
Science; General science
A genus of low, leafless, green-stemmed shrubs belonging to the plant class Ginkgoopsida of the division Pinophyta (see illus. ). They grow in dry, alkaline soils around the ...
acanthometrida
Science; General science
A genus of marine protozoans in the class Acantharea. The kingdom Protozoa contains 18 phyla. One of the parvkingdoms (a hierarchical classification between kingdom and ...
halimeda
Science; General science
A genus of marine, benthic, green algae (Chlorophyta) belonging to the family Codiaceae. Plants are attached by a holdfast, generally several centimeters high, and consist of ...
rauwolfia
Science; General science
A genus of mostly poisonous, tropical trees and shrubs of the dogbane family (Apocynaceae). Certain species are the source of valuable emetics and cathartics. The species ...
cladoselache
Science; General science
A genus of Paleozoic chondrichthyan “sharks,” characterized by broad-based paired fins, a short stout bony spine preceding the first of the two dorsal fins, and a large lunate ...
borrelia
Science; General science
A genus of spirochetes that have a unique genome composed of a linear chromosome and numerous linear and circular plasmids. Borreliae are motile, helical organisms with 4–30 ...
enterovirus
Science; General science
A genus of the family Picornaviridae. Enteroviruses include the polioviruses (three types), the coxsackieviruses (more than 29 types), and the echoviruses (more than 34 types). ...
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