Which of the following effects is produced by the cohesive properties of water molecules? A. Lakes do not freeze solid in winter, even at below freezing temperatures. B. Evaporation of water from a leaf's surface lowers the temperature of the leaf. C. Water flows upward from a plant's roots to the leaves in narrow tubes. D. Cells resist temperature changes, even as their internal processes give off heat.

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.

Describe the function of the endomembrane system? what organelles are involved?

How do living things obtain phosphorus