Summarize how scientists use evidence from rock strata to create a geologic time scale and organize Earth's 4.6 billion year history. In your response be sure to include the following: How do they divide the time periods/events of the 4.6 billion year history?
Explain how they interpret rock age using relative dating principles
What are some examples of evidence they use from the rock strata?

What is earths lithospheric plates interact at

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.