differentiated embryo
81Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …
82development — developmental, developmentary, adj. developmentally, adv. /di vel euhp meuhnt/, n. 1. the act or process of developing; growth; progress: child development; economic development. 2. a significant consequence or event: recent developments in the… …
83fertilization — fertilizational, adj. /ferr tl euh zay sheuhn/, n. 1. an act, process, or instance of fertilizing. 2. the state of being fertilized. 3. Biol. a. the union of male and female gametic nuclei. b. fecundation or impregnation of animals or plants. 4.… …
84Anura — ▪ amphibian order Introduction also called Salientia one of the major extant orders of the class Amphibia (amphibian). It includes the frogs (frog) and toads (toad), which, because of their wide distribution, are known by most people around… …
85Evolution — Evolution (History and Scientific Foundation) † Catholic Encyclopedia ► Evolution (History and Scientific Foundation) The world of organisms comprises a great system of individual forms generally classified according to structural… …
86Dinosaur — For other uses, see Dinosaur (disambiguation). Dinosaurs Temporal range: Late Triassic–Late Cretaceous, 231.4–65.5 Ma …
87Timeline of biology and organic chemistry — A timeline of significant events in biology and organic chemistryBefore 1600* c. 450 B.C. Sushruta writes the Sushruta Samhita , describing over 120 surgical instruments and 300 surgical procedures, classifies human surgery in 8 categories, and… …
88Mammary gland — in a human female Cross section of the breast of a human female …
89Multipotency — Multipotent progenitor cells can give rise to several other cell types, but those types are limited in number. An example of a multipotent stem cell is a hematopoietic cell a blood stem cell that can develop into several types of blood cells, but …
90Germ cell tumor — Classification and external resources Micrograph of a seminoma, a common germ cell tumor. ICD 10 C …
