If a scientist observes an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds he/she is looking at a tertiary structural arrangement.
I would say C if thats not right then its problable D
Co2 levels stay the same then drop when there's sunlight.<span />
The 2nd goes to first 1st goes to second 3rd goes last 5th goes 3rd
