Examlex
Cells that have mutated or spontaneously changed during transmission from one generation to the next are called stem cells.
Ore
A naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.
Metamorphic Rock
Rock that was once one form of rock but has changed to another under the influence of heat, pressure, or some other agent without passing through a liquid phase.
Heat And Pressure
The combination of high temperature and force applied to a material, often leading to physical or chemical changes.
Igneous Rock
Rock formed through the cooling and solidification of magma or lava, foundational to the Earth's crust.
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