The cells of the egg there, but egg yolks only. Egg white and egg-shell section, a component that is outside the cell. The chicken is an egg fertilized with sperm-fertilization is internal before an egg white and egg comes upholstered. The cells of the egg is filled with egg yolk, with only a small cell near the surface, only there is no egg yolk which will have a nucleus and cytoplasm are egg yolks as food vacuole for rearing larvae when sperm fertilized egg nucleus with access, it will have the Zygote and war clean immediately. This will happen during cell division to occur until Morula, Blastula and Gastrula. and germinal disc or embryonic disc based on separation, Blastula Gastrula started out as a 2-storey is a prosperous outer epiblast and hypoblast flourish tissue is tissue layers in the space between these two layers, called the blastocoel, then caused the movement of the Gastrula epiblast into the blastocoel is the prosperous middle classes, in which tissue tissue all 3 floors will flourish as the organs of chickens and flourish as extraembryonic structure 4 is: 1. yolk sac is packed, egg yolk and rearing larvae. 2. the exchange of gases with the allantois and external storage of waste they excreted uric acid that embryo. Once the embryo has is larger, too. Amnion and chorion 3. caused by the folding of the outer and middle layer of tissue called the amniotic fold.To fold the overlay by lifting upwards above the embryo and then move to connect is the Amnion fluid secretion into the bag, making a larger bag so embryo floating freely is to help protect the affected embryo the outside rein. The inner membrane is the Amnion connected near the embryo. The outer membrane section is a study on the outer cladding by surrounding embryo and the embryo outside the structure between the Amnion and the chorion it all is called chorionic cavity, which is next to embryo. 4. shell protects all components inside the egg and prevent water loss. It made the normal maintenace egg intact.
การแปล กรุณารอสักครู่..
