columnar order
21Tooth development — Radiograph of lower right (from left to right) third, second, and first molars in different stages of development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth …
22Materials Science Laboratory — MSRR 1 (NASA) The Materials Science Laboratory (MSL) of the European Space Agency is a payload on board the International Space Station for materials science experiments in low gravity. It is installed in NASA s first Materials Science Research… …
23reproductive system, human — Organ system by which humans reproduce. In females, the ovaries sit near the openings of the fallopian tubes, which carry eggs from the ovaries to the uterus. The cervix extends from the lower end of the uterus into the vagina, whose opening, as… …
24Entity–attribute–value model — (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In… …
25plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …
26Comparative foot morphology — Skeletons of a human and an elephant. Comparative foot morphology is exemplified through study of the form of distal limb structures of a variety of terrestrial vertebrates. A challenge to understanding the role of the feet of a variety of… …
27Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios …
28Acer rubrum — taxobox image caption = Young specimen showing bright red fall foliage status = G5 status system = TNC status ref = Citation | last =NatureServe | contribution = Acer rubrum | title = NatureServe Explorer: An online encyclopedia of life, Version… …
29Mesothelium — Micrograph of benign mesothelial cells. Peritoneal wash. Pap stain …
30Neobuxbaumia macrocephala — Scientific classification Kingdom: Plantae (unranked) …
