A change in density occurs as a result of ___ compression.

A good answer should contain the following:  

viscoelastic

Isostatic equilibrium

asthenosphere

This theory explains how the tectonic plates in the lithosphere can move freely on the asthenosphere. The lithosphere is less dense than the asthenosphere. There's an equilibrium of the buoyancy between the lithosphere and asthenosphere.

Explanation:

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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