The zona or zona pellucida is the thick protein shell around a human egg. In order for the egg to become fertilized, the sperm has to break through the zona.
The thick myofilaments are formed from a protein called myosin.
It is the same as a regular chicken shell.
Armadillos and turtles have thick shells.
thick filaments
A-band. It has actin (thin protein) and myosin (thick protein) overlapping within it
1/2 ''
the copper outer shell is only about 1cm thick! smad
myosin
They do not have shells but do have sharp teeth and thick fur.
I believe it is the MANTLE
as thick as this question
the answer is because your protein in your hair is different. With thick hair you have more protein, with thin hair you have less protein that is also the reason for straight hair and curly hair.