yolk sac 2
rzeczownikdomena: zwierzę
Princeton WordNet [ver.3.1]
Definicja
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
