If a rat population that lives in a cold northern tundra climate was moved to the desert, where temperatures are much warmer, and then allowed to evolve for many generations, which of the following hypothetical adaptations would be most likely to aid the rats with getting and staying cool? a. A darker skin color that absorbs more sunlight
b. A reduction in the number of sweat glands
c. A larger body size
d. A smaller body size

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.