B because you can get cancer badly by smoking people smoke cause of stress the stress makes it worse to smoke
The answer is difference in density. We know that the high central density suggests the earth must be rich in nickel and iron and that much of the core must be liquid. This lower-density air then rises and is replaced by cooler, higher-density air. The result is atmospheric circulation that drives the weather and climate through redistribution of thermal energy.
Answer:
Following are the four combinations of active or inactive regulatory proteins that could be present anytime in the cell:
Active repressor , Active activator.
Active repressor, Inactive activator.
Inactive repressor, Active activator.
Inactive repressor, Inactive activator.
Explanation:
Use the attached diagram for
explanations on the four combinations of active or inactive regulatory proteins in cells.
