chicken embryo anatomy. structure of bird egg

egg anatomy structure bird chicken embryo development biology cell education yolk chick diagram science yellow animal membrane shell albumen infographic lesson chalaza fertilization reproductive eggshell poster zoology air editable annotated fertilizer birds white germinal disc blastoderm amnion allantois chorion cuticle oviposition incubation shape vector schematic detailed isometric flat font text cartoon organ brand advertising presentation circle logo line screenshot nose eye face head drawing