Saliva contains an enzyme that breaks down sugar starch fat protein

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.

What is the difference between an igneous, sedimentary and metamorphic rock

The first generation of offspring from the cross of two parents is called the a. f1 generation b. f2 generation c. short generation d. p generation