Combination of coal-burning power stations, heavy construction, booming industry and growing private car ownership has elevated the level of air pollution to unhealthy levels in which of the following cities? a. Tokyo
b. Mexico City
C. Los Angeles
d. Beijing
e. Atlanta

Modern whales developed their traits through natural selection what occurs during the process of natural selection

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

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.