Scientists notice structural similarities between fossils of a land animal and an aquatic organism. the
not a result of the two organisms having to adapt to similar environments. what can they attribute the structural similarities to

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.

We can plant more trees and plants.

The answer is hilum.