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How has molecular biology helped to clarify some of the relationships between living things?
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Molecular biology is the study of the molecules that make up living organisms.
Molecular biologists study living organisms based upon the molecular level. A living organism is any living thing that is contiguous. Micro-organisms, fungus, plants and animals are all living organisms.
Organisms that have the same or very similar molecular makeup or structure would be classified in groups closer together. This would show their similarities.
However, organisms that do not share distinct similarities would be classified further apart to indicate their differences.
Based on their cell types, organisms are then divided into prokaryotic and eukaryotic groups. Bacteria and Archaea are represented by the group called prokaryotic. Eukaryotic organisms are organisms with a membrane-bounded cell nucleus, organelles (mitochondria) and plastids when referring to plant life.
http://plato.stanford.edu/entries/molecular-biology/
Molecular biologists study living organisms based upon the molecular level. A living organism is any living thing that is contiguous. Micro-organisms, fungus, plants and animals are all living organisms.
Organisms that have the same or very similar molecular makeup or structure would be classified in groups closer together. This would show their similarities.
However, organisms that do not share distinct similarities would be classified further apart to indicate their differences.
Based on their cell types, organisms are then divided into prokaryotic and eukaryotic groups. Bacteria and Archaea are represented by the group called prokaryotic. Eukaryotic organisms are organisms with a membrane-bounded cell nucleus, organelles (mitochondria) and plastids when referring to plant life.
http://plato.stanford.edu/entries/molecular-biology/
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