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ectoderm
(Encyclopedia) ectoderm, layer of cells that covers the surface of an animal embryo after the process of gastrulation has occurred. This outer layer, together with the endoderm, or inner layer, is…Yokohama
(Encyclopedia) YokohamaYokohamayōˌkōhäˈmä [key], city (1990 pop. 3,220,331), capital of Kanagawa prefecture, SE Honshu, Japan, on the western shore of Tokyo Bay. Japan's second largest city and one…cable
(Encyclopedia) cable, originally wire cordage of great strength or heavy metal chain used for hauling, towing, supporting the roadway of a suspension bridge, or securing a large ship to its anchor or…paramecium
(Encyclopedia) parameciumparameciumparəmēˈsĭəm [key], unicellular organism of the genus Paramecium, of the ciliate phylum Ciliophora found in freshwater throughout the world. Like other protozoans,…Bacon, Roger
(Encyclopedia) Bacon, Roger, c.1214–1294?, English scholastic philosopher and scientist, a Franciscan. He studied at Oxford as well as at the Univ. of Paris and became one of the most celebrated and…spinal cord
(Encyclopedia) spinal cord, the part of the nervous system occupying the hollow interior (vertebral canal) of the series of vertebrae that form the spinal column, technically known as the vertebral…eye
(Encyclopedia) CE5 Cross section of human eye eye, organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation.…Saint Petersburg, city, Russia
(Encyclopedia) Saint Petersburg, formerly Leningrad, Rus. Sankt-Peterburg, city (1990 est. pop. 5,036,000), capital of the Leningrad region (although not administratively part of it) and the…The Journals of Lewis & Clark: June 7, 1806
by Meriwether Lewis and William Clark June 6, 1806June 8, 1806June 7, 1806 Saturday June 7th 1806. The two young Cheifs who visited last evening returned to their village on Commeap C…fruit
(Encyclopedia) CE5 Types of fruit fruit, matured ovary of the pistil of a flower, containing the seed. After the egg nucleus, or ovum, has been fertilized (see fertilization) and the embryo…Trending
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