Life is all about specific interactions between various biomolecules . Biomolecules are of varied types carbohydrates, lipids , amino acids , nucleic acids depending on the structure they have and function they perform they are categorised. Biomolecules are found in all life forms even in viruses . There are prions which are solely made of proteins and viriods which are made of only RNA.
These biomolecules have congregated into the cells which further assembled into tissues , organs and organs system .
Species as of today have cells , tissue and organ system based level of organisation .
In order to maintain themselves they have evolved a mechanism called reproduction . We learn more about reproduction in next post.
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