You will use this week’s lesson to create a flow map showing how Earth’s systems evolved and affected each other in order to eventually support life. Be creative by using pictures along with explanations of how Earth evolved over time. Be sure to include the following: Evolution of Earth’s Atmosphere
Evolution of Earth’s Biosphere
How the first heterotrophs and autotrophs affected the early atmosphere and the surface of the Earth as well as other aspects of the biosphere
The production of oxygen and how it affected other Earth systems such as the atmosphere, biosphere, geosphere and hydrosphere
Write a 3-5 sentence summary explaining how the evolution of one system affected the evolution of another.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein