1. the diagram below represents a cell and several
molecules. the number of molecules shown
represents the relative concentration of the
molecules inside and outside of the cell.
molecule b could enter the cell as a direct result of
do
кеу
o molecule a
molecule b
molecule c
10
cell
0
(1) digestion
(2) diffusion
(3) active transport
(4) enzyme production
explain:

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.

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Explain how the concentration gradient affects the process of atp synthesis