What field is used to classify organisms

What are some natural processes that represent physical and chemical changes?

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now