Cell differentitation is important because our body's need different type of cells to grow and also function
<span>L-amino acids and D-sugars are part of every protein.
All proteins are made up of them.
The fact that all biological systems use L-amino acids and D-sugars is linked with the idea that certain groups of organisms come from a common ancestor because. The reason is that if the common ancestors used L-amino acids and D-sugars, than its offsprings use them as well.
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Hi hope you ace your test
An example would be acid rain because acid is a chemical.
