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Embryology p.186-192

4-H Avian Bowl
Across
Pertaining to the yolk of an egg
A membrane enveloping the embryo, enclosing the amnion.
Collective mass of cells produced by the splitting of a fertilized ovum
Thin, soft, pliable sheet or layer of tissue covering an organ
The most important factor in incubating eggs
Functions as a respiratory organ in development
The 4 layers of whitish watery protein
Device to measure the amount of moisture or water vapor in the air.
Temporary cap on the chick's upper beak which serves for pipping
Thousands of tiny openings in the shell of an egg, through which gases are exchanged.
Down
A container with the proper temperature and humidity to allow fertile eggs to hatch.
Maintaining conditions favorable for developing and hatching fertile eggs.
The hard, protective covering that makes up the shell
Fertilized cell that rapidly divides into 2 cells, then 4, 8, 16, 32...
Allow for a normal exchange of air.
A thin, fluid-filled sac surrounding the embryo
Prevents the blastoderm from sticking to the shell membrane.
The amount of moisture in the air
The space that is formed between the inner and outer shell membranes, when the egg cools.
Prolongations of thick inner-white, twisted like ropes that anchor the yolk inn the center of the egg.
Capable of reproducing
Globular mass of yellow semi-liquid located in the center of the egg.