Penguins are birds and feathers cover their bodies, not fur. Some in ornithology believe that the 'chemical composition of feathers is about 91% protein, 1.3% fat and 7.9% water'.
Only when they are molting.
Yes they are made from Keratin Protein
Feathers are a solid material. They are made of keratin, a protein that forms a strong structure in the form of strands in feathers. Feathers can be flexible and soft, but they are still considered a solid material.
Your hair is composed of the protein keratin, which is the same protein that makes up fingernails, feathers, claws and hooves.
Keratin.
no chickens eat everything, sometimes i think they are more like pigs then pigs are. I actually fed my chickens catfood when they were molting, gave them extra protein for growing back their feathers.
Ribosomes produce proteins in the cell.
Yes, they produce proteins.Yes.
Protein
plants dont have the enzyme that folds the protein in the exact manner(3-D) structure so they dont produce protein
Yes nails are made from proteins. So are feathers and hair