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As the density of a population increases, the rate of reproduction increases.
Oxygen
A chemical element with symbol O, essential for respiration in many organisms and important in various industrial processes.
Isotopes
Forms of the same chemical element that have different numbers of neutrons, leading to variations in their total number of nucleons.
Neutrons
Subatomic particles found in the nucleus of an atom, carrying no electric charge and having a mass slightly larger than that of a proton.
Allotropes
Different forms of the same element in the same physical state with different structures and properties.
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