fibrous proteins
Fingernails (and hair and horns) are made of keratin, a tough insoluble protein.
It is tough to tell the exact estimate.
Typically, they contain an enzyme (a biological catalyst) that speeds up the break-down (into smaller molecules) of the long tough protein fibers of meat.
The stratum corneum is the tough outer layer of the skin.
what tough barrier supports and protects plant cells
To be mentally tough means to be tough to the mind.
Most of them are not physically. if you mean tough in character, they can be as ruthless as men.
Fingernails (and hair and horns) are made of keratin, a tough insoluble protein.
=Albert Einstien was a poor little boy but he was very tough. But not physically tough, ust tough with his soul.=
No it says in the book he is not physically oriented
Fibrous proteins present in the cell membrane may span the entire length of the cell membrane and have important functions, as they serve as receptors for the cell. These kinds of protein molecules act as carriers for active transport of substances in and out of the cell. Some form pores and thus, allow fatty acids and other lipids insoluble in water molecules to pass through.
From personal experience I found that Army boot camp was quite physically challenging. It was just as tough mentally however.
If you mean mutually insoluble, that's going to be a tough one. I can come up with three: water, carbon tetrachloride, and mercury. However, just about anything else I can think of is going to be soluble in at least one of those.
It is tough to tell the exact estimate.
Someone who look strong and kick take on the guys no problem! Strong physically strong women are very rare in movies,TV and videogames! If they had a strong mind and a strong body and were tough they would be the perfect strong tough female characters! Most modern female characters in movies like action movies and very unconvincing and do not look tough enough!Thats why physically strong tough female characters are better!
In the main, plastics are tough, ignoring soft, crinkly plastics like plactic bags, because they are 1)polymers, meaning they have very long chain molecules, and 2), these molecules are lying together in rows, allowing very little space between them, which makes them hard, and rigid.
air, sunlight, it can also absorb sunlight, but a cellthat's a tough one, the cell it let's out is....................................................................molecules it let's out is.........................................................eating, smarts, absorbing and i think maybe it forgets it's roots?