Proteins are the building blocks of many structures,
pemis
Steel
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Building blocks are often made out of many different things. Building blocks are often made of high quality materials such as plastic or different kinds of wood.
He was 12 building blocks old, or 35 in dog-building blocks
the building blocks of life are cells the building blocks of matter are atoms
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What sort of blocks? Childrens' building blocks? If so, how big is each block?
There are 20 different building blocks, known as amino acids, that combine to form proteins in living organisms.
Granite contains many minerals and minerals are the 'true' building blocks of rocks
The building blocks of life are cells or you may mean that amino acids are the building blocks of proteins.