Yolk — (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See {Yellow}.] [Written also {yelk}.] [1913 Webster] 1. The yellow part of an egg; the vitellus. [1913 Webster] 2. (Zo[ o]l.) An oily… … The Collaborative International Dictionary of English
Yolk cord — Yolk Yolk (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See {Yellow}.] [Written also {yelk}.] [1913 Webster] 1. The yellow part of an egg; the vitellus. [1913 Webster] 2. (Zo[… … The Collaborative International Dictionary of English
Yolk gland — Yolk Yolk (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See {Yellow}.] [Written also {yelk}.] [1913 Webster] 1. The yellow part of an egg; the vitellus. [1913 Webster] 2. (Zo[… … The Collaborative International Dictionary of English
yelk — Yolk Yolk (y[=o]lk or y[=o]k; 277), n. [OE. yolke, yelke, [yogh]olke, [yogh]elke, AS. geoloca, geoleca, fr. geolu yellow. See {Yellow}.] [Written also {yelk}.] [1913 Webster] 1. The yellow part of an egg; the vitellus. [1913 Webster] 2. (Zo[… … The Collaborative International Dictionary of English
Sexual reproduction — is the creation of a new organism by combining the genetic material of two organisms. The two main processes are: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the… … Wikipedia
New Caledonian Crested Gecko — Taxobox name = New Caledonian Crested Gecko image width = 240px status = unknown regnum = Animalia phylum = Chordata classis = Reptilia ordo = Squamata familia = Gekkonidae genus = Rhacodactylus species = R. ciliatus binomial = Rhacodactylus… … Wikipedia
King mackerel — Taxobox name = King mackerel regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Perciformes familia = Scombridae genus = Scomberomorus species = S. cavalla binomial = Scomberomorus cavalla binomial authority = (Cuvier, 1829)The… … Wikipedia
Leopard shark — Taxobox name = Leopard shark image width = 240px status = LR/cd status system = IUCN2.3 regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Carcharhiniformes familia = Triakidae genus = Triakis species … Wikipedia
Hemigrammus erythrozonus — Taxobox name = Glowlight Tetra status = secure image width = 250px regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Characiformes familia = Characidae subfamilia = Incertae genus = Hemigrammus species = H. erythrozonus binomial … Wikipedia
Evolution of mammals — Restoration of Thrinaxodon, a member of the cynodont group, which includes the ancestors of mammals Further information: Evolutionary history of life The evolution of mammals within the synapsid lineage (sometimes called mammal like reptiles )… … Wikipedia
