It regulates on/off like a light switch

1 minute of latitude is equal to 1 nautical mile.
Just like an hour of time, there are 60 minutes in a degree of latitude.
Therefore, there are 60 nautical miles in each degree.
B. genetic variation imparting reproductive success.
Explanation:
When a front passes over an area, it means a change in the weather. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front passes there may there may be dramatic thunderstorms. At a warm front there may be low stratus clouds.
Answer:
Biologists study life at all levels of organization and complexity:Atoms
Genes
Atoms
Molecules
Cells
Tissues
Organs
Organisms
Explanation
Populations
Communities
Ecosystems
Earth
Solar Systems
Galaxies
They can also study specific things within those classifications, such as specific organs, the effects of pollution on ecosystems, etc.: