2. Using Model 1 and the letters B, D, E, and I, write mathematical expressions to show the types of population described below. Note: The use of > and < may be needed. a. A stable population (total number of organisms is not changing). b. A declining population (total number of organisms is decreasing). c. A growing population (total number of organisms is increasing).

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.