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Sarcodina
(Encyclopedia) Sarcodina, the largest phylum (11,500 living species and 33,000 fossil species) of protozoans). It comprises the amebas and related organisms; which are all solitary cells that move…sedge
(Encyclopedia) sedge, common name for members of the Cyperaceae, a family of grasslike and rushlike herbs found in all parts of the world, especially in marshes of subarctic and temperate zones. The…perch
(Encyclopedia) perch, common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perches belong to the large order Perciformes (spiny…pine nut
(Encyclopedia) pine nut or piñonpiñonpĭnˈyən, pēˈnyōn [key], edible seed of various species of pine trees. Among the North American species that bear such edible seeds are the nut pines or piñons,…tumbleweed
(Encyclopedia) tumbleweed, any of several plants, particularly abundant in prairie and steppe regions, that commonly break from their roots at maturity and, drying into a rounded tangle of light,…trichina
(Encyclopedia) trichinatrichinatrĭkīˈnə [key], common name for species of roundworm of the phylum Nematoda. The species Trichinella spiralis is an important parasite, occurring in rats, pigs, and man…strawberry
(Encyclopedia) strawberry, any plant of the genus Fragaria of the family Rosaceae (rose family), low herbaceous perennials with edible red fruits, native to temperate and mountainous tropical regions…caviar
(Encyclopedia) caviar or caviarecaviarkăvˈēär [key], the roe (eggs) of various species of sturgeon prepared as a piquant table delicacy. The ovaries of the fish are beaten to loosen the eggs, which…dolphin, aquatic mammal
(Encyclopedia) dolphin, aquatic mammal, any of the small toothed whales of the family Delphinidae, numbering more than 50 species. These include the true, or beaked, dolphins, the killer whale, the…evolution
(Encyclopedia) CE5 Plant and animal evolution [Modified from Alfred Gunderson in Brooklyn Botanic Garden Leaflets, Ser. 18, No. 4 (1930); used by permission.] evolution, concept that embodies…Trending
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