Large ears are a rare trait in a mainland mice population. a female mouse homozygous for very large ears arrives at an island that already contains mice after sneaking onto a boat. this will lead to a population with a higher incidence of big ears than the mainland population because of gene flow

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.

They are all in a iving organism.