Examlex
The entire range of factors an organism has available to exploit in its habitat is its:
Mantle
The thick layer of rock between Earth's crust and its outer core, responsible for plate tectonics and volcanic activity due to convection currents.
Proton
Principal particle of an atomic nucleus with a positive charge.
Neutron
A subatomic particle that contributes mass to a nucleus and is electrically neutral.
Electron
A stable, subatomic particle with a negative charge.
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