The earth is populated mostly by single-celled organisms, such as bacteria. however, there are many multi-celled organisms as well. which of the following is a multi-celled organism? a. insect b. human c. flower d. all of these

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.