a molecule responsible for maintaining and/or reproducing life

Combinations of elements that only could have been formed only by organisms. Examples include nucleic acids, lipids (fatty molecules), carbohydrates (also known as sugars), and proteins.

a dependent biostructure which consists of a single molecule

A minute particle of matter from a living or once living thing Chromosomes: Long chains of DNA that carry genes and other genetic Information. In eukaryotes (species with nucleus containing cells) they occur in pairs inside the nucleus of a cell (for example humans have )

a compound that naturallyoccurs in living organisms

a substance that naturally occurs in living organisms