An unhatched hick develops a hard 'shell tooth' by the time it is ready to hatch and uses it to tap against the inside of the shell until it makes a small hole. The chick then pecks at the edges of the hole to enlarge it until the opening is large enough for it to escape from the shell.
There will be kind of pocket in the egg which contains enough oxygen for the chick to breathe in the egg for 21 days.
It is the yolk that provides the nutrients for an unhatched chick.
The chick grows in the albumen (the white of the egg) and feeds off the yolk.
They keep the egg cratled in the father's feet
The egg yolk nourishes the chick until it hatches.
The developing chick feeds on the yolk sac, much like the baby of live bearing animals attaches to the placenta. The chick has enough nutrients when born to got 24 hours without beginning on chick starter.
A young chick develops inside the egg and can be hatched naturally or through hatcheries. The young chick depends on the egg yolk for nutrients.
The chick egg has much more yolk than the frog egg. A blastopore in frog egg and a premitive groove in chick egg both have the same basic function which is to mark the origin of gastrulation
The yolk of the egg is food stored for the chick during its growth.
the egg tooth it takes 21 days
There is no difference.
The embryo, which in a fertilized egg is a tiny speck attached to the yoke sack.