Newly hatched goslings and ducklings rapidly learn to treat any animal they see shortly after hatching as their mother. This is called filial and is an adaptive behavior. conditioning imitation sensitization habituation imprinting

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.

The answer is d. when it begins to fall back to the child's hand