Which portion of a protein's structure has the strongest bonds? In other words hardest to break: Primary, Secondary, Tertiary, or Quaternary?

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

If animal agriculture was eliminated, how much grain would become available for human consumption?