There are 3 temporary organs and I am going to tell you them and explain what they do. 1 is the allantois. It has three jobs 1 is serves gas exchange for the embryo. The 2 is handles the wastes. The 3 is absorbs albumen, which serves as a nutrient for the embryo. And the last is removes calcium from the shell for hardening the embryo's bones and back. The 2 temporary organ is the amnion. What it does is it is a thick, fluid, filled sac around the embryo during growth. And the last temporary organ is the egg tooth. What it does is it is on the chicks upper beak that is used for pipping breaking through the shell. Those are the temporary organs on a chick.
One events in life of embryo is that each day the air cell got bigger. The baby chick in its shell it eats the yolk for protein to make it stronger so it could break out the egg.
My second event in life of embryo is that each day the air cell gets bigger with the chicks egg. So then when the air cell gets as big as it can be the chick starts pecking at the air cell and makes a circle, and moves the top of the egg out of the way so the chick can get out the shell, and then it can be free.
My last event in life of embryo is the albumen. The albumen gives source of protein and water for the embryo.
One thing about the incubation is that the temperature is suppose to be 99 degrees and 101 degrees Fahrenheit. That is one thing. My second thing about the incubation is you can not bring in sprays that have any type of chemicals in them. That is my second thing.
My third thing about the incubation is you are suppose to turn the eggs about five times a day. And when you are turning them try not to crack them or squeeze them. That is my third thing of incubation. My last thing is humidity. Lack of humidity in the incubator lowers the number of chicks that hatch. If the humidity is too low it is hard for the chicks to hatch, and that means that the egg last too much water during incubation. That is my last thing about the incubation.