Atrain-car is to a train as a is to a polymer and a molecule is to a

, you!

(it has to do with macromolecules)

Select the correct answer from each drop-down menu proteins are

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

How and why organisms are hierarchically classifies