How long ago did oceans begin to form?
12.5 MYA
137 MYA
285 MYA
3800 MYA

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.

Which promotes sustainability? o a. using more landfills o b. finding new sources of coal o c. increasing consumption o d. encouraging recycling programs