The Punnett Square shows a cross between a mouse with black fur whose genetic makeup was BB, and a mouse with white fur whose genetic makeup was bb.
Explain why all of the offspring have black fur, even though each of them has a gene for white fur?

White is recessive so there must be 2 white mice to great a white mouse

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.